MATLAB GUI (Graphical User Interface) Tutorial for Beginners

MATLAB TLAB GUI GUI Tutoria utoriall - For For Begin Beginn ners | blink blinkdagg dagger

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23 Oct 2007 Quan Quach 279 comments 106,587 views Why use a GUI in MATLAB? The main reason GUIs are used is because it makes things simple for the end-users of the program. If GUIs were not used, people would have to work from the command line line interface, which can be extremely difficult difficult and fustrating. Imagine Imagine if you had to input text commands to operate your web browser (yes, your we b browser is a GUI too!). It wouldn’t be very pra ctical would it? In this tutorial, we will will create a simple simple GUI that will add together two numbers, displaying displaying the answer in a designated designated text field.

This tutorial is written for those with little or no experience creating a MATLAB GUI (Graphical User Interface). Basic knowledge of MATLAB is not required, but recommended. MATLAB version 2007a is used in writing this tutorial. Both earlier versions and new versions should be compatible as well (as long as it isn’t too outdated). Lets get started! start ed!

Initializing GUIDE (GUI Creator) Creating the Visual Aspect of the GUI: Part 1 Creating the Visual Aspect of the GUI: Part 2 Writing the Code for the GUI Callbacks Launching the GUI Troubleshooting and P otential Problems P roblems Related Posts and Other Links

1. First, open up MATLAB. Go to the command window and type in guide.



2. You should see the following following screen appear. Choose the first option Blank GUI (Default) .

3. You should now see the following screen (or something similar depending on what version of MATLAB you are using and what the predesignated predesignated settings are):

4. Before adding components blindly, blindly, it is good to have a rough idea about how you want the graphical part of the GUI to look like so that it’ll be easier to lay it out. Below is a sample of what the finished GUI might look like.



1. For the adder GUI, we will need the following components Two Edit Text components Three Static Text component One Pushbutton component Add in all these components to the GUI by clicking on the icon and placing it onto the grid. grid. At this t his point, your GUI should look similar to the figure below :

2. Next, its time to edit the properties of the se components. Let’s start with the static t ext. Double click one of the Static components. You You should see the following following table appear. It is called the Property Inspector and allows you to Text modify the properties of a component.

MATLAB GUI Tutorial - For Beginners | blinkdagger

http://blinkdagger.com/matlab/matlab-gui-graphical-user-interface-tutorial...

3. We’re interested in changing the String parameter. Go ahead and edit this text to +.

Let’s also change the font size from 8 to 20.

After modifying these properties, the component may not be fully visible on the GUI editor. This can be fixed if you resize the component, i.e. use your mouse cursor and stretch the component to make it larger. 4. Now, do the same for the next Static Text component, but instead of changing the String parameter to +, change it to =. 5. For the third Static Text component, change the String parameter to whatever you want as the title to your GUI. I kept it simple and named it MyAdderGUI. You can also experiment around with the different font options as well. 6. For the final Static Text component, we want to set the String Parameter to 0. In addition, we want to modify the Tag parameter for this component. The Tag parameter is basically the variable name of this component. L et’s call it answer_staticText . This component will be used to display our answer, as you have probably already have guessed.



7. So now, you should have something that looks like the following:

1. Next, lets modify the Edit Text components. Double click on the first Edit Text component. We want to set the String parameter to 0 and we also want to change the Tag parameter to input1_editText , as shown below. This component will store the first of two numbers that will be added together.

2. For the second Edit Text component, set the String parameter to 0 BUT set the Tag parameter input2_editText . This component will store the second of two numbers that will be added together. 3. Finally, we need to modify the pushbutton component. Change the String parameter to Add! and change the Tag parameter to add_pushbutton. Pushing this button will display the sum of the two input numbers.



4. So now, you should have something like this:

Rearrange your components accordingly. You should have something like this when you are done:

5. Now, save your GUI under any file name you please. I chose to name mine myAdder. When you save this file, MATLAB automatically generates two files: myAdder.fig and myAdder.m. The .fig file contains the graphics of your interface. The .m file contains all the code for the GUI.



MATLAB automatically generates an .m file to go along with the figure that you just put together. The .m file is where we attach the appropriate code to the callback of each component. For the purposes of this tutorial, we are primarily concerned only with the callback functions. You don’t have to worry about any of the other function types. 1. Open up the .m file that was automatically generated when you saved your GUI. In the MATLAB editor, click on the icon, which will bring up a list of the functions within the .m file. Select input1_editText_Callback .

2. The cursor should take you to the following code block: function input1_editText_Callback(hObject, eventdata, handles) % hObject handle to input1_editText (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % Hint: get(hObject,'String') returns contents of input1_editText as text % str2double(get(hObject,'String')) returns contents of % input1_editText as a double

Add the following code to the bottom of that code block: %store the contents of input1_editText as a string. if the string %is not a number then input will be empty input = str2num(get(hObject,'String')); %checks to see if input is empty. if so, default input1_editText to zero if (isempty(input)) set(hObject,'String','0') end guidata(hObject, handles);

This piece of code simply makes sure that the input is well defined. We don’t want the user to put in inputs that aren’t numbers! The last line of code tells the gui to update the handles structure after the callback is complete. The handles stores all the relevant data related to the GUI. This topic will be discussed in depth in a different tutorial. For now, you should take it at face value that it’s a good idea to end each callback function with guidata(hObject, handles); so that the handles are always updated after each callback. This can save you from potential headaches later on. 3. Add the same block of code to input2_editText_Callback . 4. Now we need to edit the add_pushbutton_Callback . Click on the following code block is what you should see in the .m file.

icon and selectadd_pushbutton_Callback . The

% --- Executes on button press in add_pushbutton. function add_pushbutton_Callback(hObject, eventdata, handles) % hObject handle to add_pushbutton (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)

Here is the code that we will add to this callback: a b % %

= get(handles.input1_editText,'String'); = get(handles.input2_editText,'String'); a and b are variables of Strings type, and need to be converted to variables of Number type before they can be added together

total = str2num(a) + str2num(b); c = num2str(total);



% need to convert the answer back into String type to display it set(handles.answer_staticText,'String',c); guidata(hObject, handles);

5. Let’s discuss how the code we just added works: a = get(handles.input1_editText,'String'); b = get(handles.input2_editText,'String');

The two lines of code above take the strings within the Edit Text components, and stores them into the va riables a and type, and not Number type, we cannot simply add them together. Thus, we must b. Since they are variables of String convert a and b to Number type before MATLAB can add them together. 6. We can convert variables of type to Number type using the MATLAB command str2num(String argument) . String Similarly, we can do the opposite using num2str(Number argument) . The following line of code is used to add the two inputs together. total= (str2num(a) + str2num(b));

The next line of code converts t he sum variable to String type and stores it into the variable c. c = num2str(total);

The reason we convert the final answer back into String type is because the Static Text component does not display variables of type. If you did not convert it back into a String type, the GUI would run into an error when it Number tries to display the answer. 7. Now we just need to send t he sum of the two inputs to t he answer box that we created. This is done using the following line of code. This line of code populates t he Static Text component with the variable c. set(handles.answer_staticText,'String',c);

The last line of code updat es the handles structures as was previously mentioned. guidata(hObject, handles);

Congratulations, we’re finished coding the GUI. Don’t forget to save your m-file. It is now time to launch the GUI! 8. If you don’t want MATLAB to automatically generate all those comments for each of the callbacks, there is a way to disable this feature. From the GUI editor, go to File, then to Preferences.



1. There are two ways to launch your GUI. The first way is through the GUIDE editor. Simply press the below:

icon on the GUIDE editor as shown in the figure

The second method is to launch the GUI from the MATLAB command prompt. First, set the MATLAB current directory to wherever you saved your .fig and .m file.

Next, type in the name of the GUI at the command prompt (you don’t need to type the .fig or .m extension):



2. The GUI should start running immediately:

Try to input some numbers to test out the GUI. Congratulations on creating your first GUI!

So your GUI doesn’t work and you don’t know why. Here are a couple of tips that might help you find your bug: 1. If you can’t figure out where you error is, it might be a good idea to quickly go through this tutorial again. 2. The command line can give you many hints on where exactly the problem resides. If your GUI is not working for any reason, the error will be outputted to the command prompt. The line number of the faulty code and a short description of the error is given. This is always a good place to start investigating. 3. Make sure all your variable names are consistent in the code. In addition, make sure your component Tags are consistent between the .fig and the .m file. For example, if you’re trying to extract the string from the Edit Text component, make sure tha t your get statement uses the right tag! More specifically, if you have the following line in your code, make sure that you named the Edit Text component accordingly! a = get(handles.input1_editText,'String');

4. The source code is available here, and could be useful for debugging purposes. 5. If all else fails, leave a comment here and we’ll try our best to help.



MATLAB GUI Tutorial - Slider MATLAB GUI Tutorial - Pop-up Menu MATLAB GUI Tutorial - Plotting Data to Axes MATLAB GUI Tutorial - Button Types and Button Group MATLAB GUI Tutorial - A Brief Introduction to handles MATLAB GUI Tutorial - Sharing Data among Callbacks and Sub Functions Video Tutorial: GUIDE Basics More GUI Tutorial Videos From Doug Hull This is the end of the tutorial.

279 Responses to “MATLAB GUI (Graphical User Interface) Tutorial for Beginners” 1. on 20 Nov 2007 at 10:04 am 1Mike Thanks for the tutorial - its nice and clear 2. on 28 Nov 2007 at 11:54 am 2Fred Extremely useful. Can you add a further tutorial on how to plot data in a set of axes in the GUI? 3. on 28 Nov 2007 at 12:36 pm 3Quan Quach You can find the tutorial on plotting data to a set of axes here. You can find a list of matlab tutorials here. 4. on 28 Nov 2007 at 3:04 pm 4Fred First of all, I greatly appreciate these tutorials. I have found the Matlab documentation simply unreadable on the subject of GUIs, and your a pproach with simple examples and easily modified code is perfect. I was having some success with KeyPressFcn to make a graph with live keyboard input. Is there any way to integrate this into a graph in a GUI? Or alternatively, have a GUI running simultaneously with a live figure responding to KeyPressFcn? 5. on 28 Nov 2007 at 4:06 pm 5Quan Quach Hello Fred, I’m not sure if I’m understanding your question exact ly, but I’ll try to answer it anyways. If you look here, it’ll show you how to enter the command line mode so that you can modify any of the GUI’s components in real time, including the axes. But I think you may be asking something different. Are you asking if there is a way to press a particular key, say “ e”, and have it populate the axes on a GUI with a plot? I’d love to help, so if you can clarify your question, I will be in better shape to answer! Quan 6. on 16 Dec 2007 at 8:32 pm 6 zuri Hi!, First of all, myAdder GUI tutorial very useful for beginner like me. but I have a question, is it possible to send let say; sine wave plot from one GUI window to another GUI window via UDP IP connection (using same computer)? thanks, zuri



7. on 17 Dec 2007 at 4:25 am 7 Gil Hello Quan, Great tutorial, loved it! I’m having a problem similar to Fred’s here (I think). I am trying to create a GUI that displays an image, and a pointer (little cross or whatever) to a current point (x,y). I want the cursor position to respond to key strokes (arrows), and various shortcuts (say ‘Ctrl+F’ for toggling a filter, ‘r ’ for refresh, etc.). I know how to implement the movement of the cursor on the image, but don’t know how to trigger it with the keystrokes. Regards, Gil 8. on 17 Dec 2007 at 4:33 am 8Quan Quach Zuri: I’m a little confused on what you’re trying to accomplish, if you can elaborate then perhaps I might have an answer. Gil: I emailed you some code that I developed to explain this. I will probably turn this into a tutorial in the immediate future 9. on 18 Dec 2007 at 7:27 pm 9Diego Barragán See also: http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=12122&objectType=FILE Diego 10. on 08 Jan 2008 at 11:26 am 10Vahid Very useful. Thanks Would you please provide the pdf file of the tutorial so it can be printed? 11. on 08 Jan 2008 at 5:43 pm 11Quan Quach Hello Vahid, This is something that we are currently working on and hope to have available in the near future. But for now, we don’t have this capability. 12. on 11 Jan 2008 at 7:10 am 12Philips Wang Simple but very useful! Thanks a lot.I am a beginner! 13. on 11 Jan 2008 at 12:43 pm 13ravi .c hello friends i am ravi chaudhary . i done the project in fingerprint recognition in matlab. this gui tutorial help me to creating the framework of my project. thank u very much. if anybody help me for creating source code for my project .please contac t us in my email ([email protected])or ([email protected]) 14. on 19 Jan 2008 at 1:02 am 14ali



realy nice topic i wonder if u can provide more of this thanx alot 15. on 22 Jan 2008 at 2:19 am 15mohd muzafar thanks to teach a simple GUI but i wonderful to know how to make analysis of buried optical waveguide channel using finite difference method using gui… 16. on 22 Jan 2008 at 10:28 pm 16 Quan Quach thanks for the feedback guys. if you click on the “ matlab” tap at the top of the page, you will see a list of tutorials or you can click here 17. on 25 Jan 2008 at 4:56 am 17 Amol Its realy amazed me with simplicity u xplained the GUI customsn… its gr8 help 4 me…thx 18. on 29 Jan 2008 at 10:55 am 18uvise I get an idea about gui….thanks for it….. Can you explain how we can cre ate a button for browsing an image for doing further process.where will be this readed image stored.whether this image can be seened.pls give the .m codes. pls mail to my email ID 19. on 08 Feb 2008 at 6:51 am 19Lukasz Hello Diego Barragán Your tutorial is really useful, but I have a one question, do you have it in English? Thanks Lukasz 20. on 13 Feb 2008 at 7:46 am 20Hank_Chinaski Thanks a lot guys. This made it all much clearer than the guys from Mathworks. 21. on 17 Feb 2008 at 5:14 pm 21Dave Barr Hi - I am very new to Matlab (7.0) and climbimg the steep learning curve. I contruct ed your Gui and works fine and I think I understand the basic parts of your GUI code. I think it was nicely put together and very understandable. Two questions though: 1) Your first added code block, ‘input = str2num(get(hObject,’String’));’ shows the variable ‘input’ and ’str2num(get’ in blue type. My editor shows these in black type ?? I have looked at the preference settings but cannot change this but the code works and no errors. I think your screen shot more clearly defines the variable name by its blue color any ideas? 2) I am quite confused on the ‘handles’ versus ‘hObject’ - Am I right in thinking ‘handles’ are for data being sent somewhere else and ‘hObject’ for data being received? - I am still trying to understand terminology and syntax. Anyway - tks for you time - guys like you make it easier for guys like me! Regards 22. on 17 Feb 2008 at 5:21 pm 22Quan Quach



Hi Dave, 1) The coloring scheme is a little bit off due to the wordpress plugin that I use. 2) The handles structures contain’s all the information about all of the GUI’s objects. hObject on the other hand, is the active object from which the callback is called. So for example, if I pressed the “add” button, hObject in this case is the “add” button object. Another example. When I input a number into the left edit text field, hObject is the edit text object. There are a bunch of other tutorials that you c an find on this website. I recommend taking a look at this one for a better understanding: http://www.blinkdagger.com/matlab/matlab-gui-tutorial-a-brief-introduction-to-handles 23. on 18 Feb 2008 at 1:32 am 23Dave Barr Quan, thanks you so much for your quick reply. I will continue with your tutorials as you suggest. Excellent and clear work Dave 24. on 25 Feb 2008 at 11:47 pm 24Hugo Hi my friend. Nice work , and very thank’s to you disponibility to make this tutorials. I spend a few hours to make some things that you have here in your site, now i can found and i can see that i’m a good way. But i have a little thing that i want to make bet ter, so i have a edit text box where i write the 3 digits of a IP address(0…255), so my ideia is to make a limit os 3 chars on this edit text box. I used the KeyPressFcn to count a number of pressed keys and compare it to 0..9 if is backspace or delete e decraise one number of this count. After when i will read the data of all edit boxs i compare the text of the edit box with 0…255 and if is a letter os >255 o put ‘0′. But also with this things isn’t perfect. I search a lot in help of matlab, and also in internet, but i can’t found any info to make something like this. Now how i have this i’m satisfied, but if i can make better i will more happy So if you can give me any trick or any ideia, or any link to internet i will very appreciated. Very tahnk’s to your pacience. String regards, Hugo 25. on 26 Feb 2008 at 5:47 pm 25Quan Quach Hello Hugo, I’m not quite sure how to do this off the top of my head. I’ll have to look into it. I’ll let you know if I find anything. Quan 26. on 27 Feb 2008 at 6:08 am 26 San hello Hugo, I could find this link very useful. The explanation was done in a very lucid manner. Thank you! San



27. on 28 Feb 2008 at 8:55 pm 27 izzy how we do linear regression using GUI how to display the equation or model?? help me… 28. on 29 Feb 2008 at 10:03 pm 28meeeeebbbb i’ve tried the tutorial step-by-step but i got error. i still got error even i’ve rewrite and corrected the code twice. then i tried to run the source code provided at this page and when i run it, still got the same error.now i’m really confuse. here the error i got when i run the source code download from this page. ??? uiopen(’C:\Documents and Settings\F3\My Documents\ani’s fyp\MATLAB\GUI\MATLAB_GUI_Tutorial for beginners(blinkdagger)-troubleshooting\myAdder.m’,1) | Error: Unexpected MATLAB expression. ??? Attempt to reference field of non-structure array. Error in ==> myAdder>add_pushbutton_Callback at 134 a = get(handles.input1_editText,’String’); Error in ==> gui_mainfcn at 95 feval(varargin{:}); Error in ==> myAdder at 42 gui_mainfcn(gui_State, varargin{:}); ??? Error using ==> myAdder(’add_pushbutton_Callback’,gcbo,[],guidata(gcbo)) Attempt to reference field of non-structure array. ??? Error while evaluating uicontrol Callback ??? Attempt to reference field of non-structure array. Error in ==> myAdder>add_pushbutton_Callback at 134 a = get(handles.input1_editText,’String’); Error in ==> gui_mainfcn at 95 feval(varargin{:}); Error in ==> myAdder at 42 gui_mainfcn(gui_State, varargin{:}); ??? Error using ==> myAdder(’add_pushbutton_Callback’,gcbo,[],guidata(gcbo)) Attempt to reference field of non-structure array. ??? Error while evaluating uicontrol Callback >> can u explain to me p/s:sori for my english 29. on 29 Feb 2008 at 10:09 pm 29Quan Quach meeb download the source files. place them into a directory.



make sure the matlab current directory is the same as above at the command prompt, type: myAdder

Please give that a try 30. on 12 Mar 2008 at 7:14 am 30Pradipta Thank you very much for the t utorial. From now on, I am ready to make GUI on matlab.. But, I would like to ask you some question. How to make a GUI that connects to simulink (*.mdl)? It’s like if you want to make GUI to take the data (input), and do the process in simulink. How to do that? Thank you very much.. Regards 31. on 14 Mar 2008 at 2:21 pm 31Quan Quach Pradipta, Try this tutorial: http://www.blinkdagger.com/matlab/matlab-gui-tutorial-integrating-simulink-model-into-a-gui 32. on 20 Mar 2008 at 8:09 am 32mini OMG thank you for this tutorial! It’s really a lifesaver! 33. on 02 Apr 2008 at 10:19 pm 33suri good tutorial. I am trying to create a GUI which differentiates a function so input is going to be a function of time or just a number, what will be code for converting string to function and how to use it. Pls help. The output will also be a function or a number. Thanks, Regards Suri 34. on 03 Apr 2008 at 5:59 am 34davyd gostei do tutorial , achei simples e bem pratico. i enjoyed the tutorial , it is easer to use .t hanks 35. on 03 Apr 2008 at 10:58 pm 35innovate » Matlab GUI Tutorial - Disable Mouse Clicking [...] with some experience creating a Matlab GUI. If you’re ne w to creating GUIs in Matlab, you should visit this tutorial first. Basic knowledge of Matlab and an understanding on how data is shared among callbacks is highly [...] 36. on 04 Apr 2008 at 5:06 am 36 Adam Bright Hi,



in my code i have the following: [time,number,pressure,raininput] = te xtread(’rain.txt’,'%s %d %f %f’,'delimiter’,',’,'headerlines’,4); my question is how do i get the user to view the array time, and from that select the ra nge they require? (preferably in listbox- so i can use for a gui plot) e.g they would only require the data from the 5t h row til the end. ( however they shouldn’t see the row no,but only the date) I have’nt clue if this is even possible. any help would be really appreciated. {brilliant tutorials by the way - you should think about publishing a book,I’ve got 5,but yours is the easiest to understand!} 37. on 05 Apr 2008 at 3:48 am 37 sunny I have to cerat a GUI project for finding the resistance value from color code.Therefore we have 4 panels in which we have to insert radio buttons.one block for finding resistance value & one for closing the window.So,suggest me programme for it along with callback functions of radio buttons. 38. on 09 Apr 2008 at 9:45 pm 38knight its nice n comprehensive 39. on 10 Apr 2008 at 1:01 am 39ckk nice tutorial..may i ask that is there any way t hat can limit the length of numbers which user can input ? 40. on 11 Apr 2008 at 1:52 am 40andy may i know why i cant prevent user t o key in other thing than number? I also cant open the source file downloaded? is this because i using Matlab 6 rather than 7? 41. on 11 Apr 2008 at 10:52 pm 41Jim Nice. One of the first GUI tutorials I’ve seen tha t wasn’t too simple, or too advanced. A large amount of MATLAB users don’t code with GUI’s because the process was never clearly explained to them. This tutuorial is simple and CLEAR. 42. on 12 Apr 2008 at 2:32 am 42Quan Quach Jim, Thanks for the positive feedback!! Quan 43. on 17 Apr 2008 at 11:46 am 43harsha great work sir.. now i got a hope of completing my project!!! 44. on 23 Apr 2008 at 9:45 am 44Jamal Hi Quan, Brilliant website, thanks very much. If I was to create a clear pushbutton which resets the value displayed in the static text;what code would I write under the pushbutton function? thanks



45. on 23 Apr 2008 at 12:14 pm 45Daniel Sutoyo Jamal: set(handles.answer_staticText,’String’,'Insert Default Static Text Here’); 46. on 30 Apr 2008 at 11:52 am 46 Peter Does anyone know how I can make the editText so that when the user types, it automatically goes into the editText box (i.e., the user doesn’t have to click in the box in order to type t heir input). Thanks. 47. on 05 May 2008 at 2:07 am 47 iran fars thanks for your help. i could find very good information in your site 48. on 08 May 2008 at 5:46 am 48Marcus Hi. I’ve noticed that MATLAB truncates values when setting edit or static text boxes. Is there anyway of avoiding or disabling this? Thanks 49. on 11 Jun 2008 at 1:53 am 49korean it’s nice to know about gui in MATlab; easy & comfortable to study thanks;) 50. on 11 Jun 2008 at 10:41 am 50Roisin Hi, I have what is probably a very simple question but I just can’t find the answer: How do I save my GUI as a jpeg so that I can use it in a report? (I’m working on a mac) Thanks Roisin 51. on 20 Jun 2008 at 9:39 am 51eva I have a problem to build up a simple GUI with a context graph y = a sin(x) where ‘a’ can be change by user with an edit box … However, there is an error when using str2num, the warning that is “Requires string or character array input” even I copy the example in the above, t he same error shown in using str2num. Please help me to solve the problem … I am the beginner of using GUI, it suffers me a lot . 52. on 27 Jun 2008 at 5:40 am 52vinay hi i have following error in my gui code.please help me: ??? Reference to non-existent field with regards Vinay 53. on 16 Jul 2008 at 1:43 am 53Temy



Thank you so much!!! It’s very helpful ^-^ 54. on 21 Jul 2008 at 2:56 pm 54Anonymous danke meister für die hilfe thanks man for your help 55. on 03 Aug 2008 at 10:37 am 55akbar hi thank u so much . it’s very useful. 56. on 04 Aug 2008 at 9:58 pm 56 C Babu Hi salute to you…No one make this much easier GUI MATLAB tutorial 57. on 06 Aug 2008 at 5:32 am 57 OnOffPT Thank you for all your tutorials. They allow everyone to start developing GUIs very very fast while trying to understand what’s happening behind and learn. 58. on 18 Aug 2008 at 2:34 am 58Nr Thank you very much for this nice tutorial. I will be looking forward to see the following tutorials. I hope other tutorials are also very easy to understand. 59. on 21 Aug 2008 at 11:08 pm 59Reju Simple and usefull tutorial. Thanks 60. on 25 Aug 2008 at 3:21 pm 60Ben Hey, this may be a beginner question, but how do I call my GUI from a separate *. m file? Say I have file(a).m, file(b).m, and file(b).fig. How do I call my file(b) GUI from file(a).m? I’ve tried a few ways, and they call the GUI successfully, but none of the buttons or controls work. I get the following error: ??? Error while evaluating uicontrol Callback Thanks. 61. on 25 Aug 2008 at 3:28 pm 61Quan Quach Ben, Make sure all the files above are located in the same directory. Give that a try! Quan 62. on 25 Aug 2008 at 3:32 pm 62Ben Thanks, that worked. But, now what if I want the files to be in different directories? 63. on 25 Aug 2008 at 5:37 pm 63Quan Quach Use the addpath command in the opening function of your main gui. The addpath command will add a path to the list of MATLAB paths and enable you to run scripts/guis from a different path other than the current matlab directory.



Quan 64. on 26 Aug 2008 at 3:04 pm 64Ben Thanks, that worked well! 65. on 03 Sep 2008 at 8:42 am 65yaaseen Hi love the tutorials. they’re great. i was wondering if you could help me. i want t o read in an input from a mirochip using a serial cable (DB9) and display that on the scree n. Believe it or not, I have no idea how to read in the input, nor how to set up the cable. but what i am most concerned with is how do I use a GUI to display an external input on the screen???? 66. on 04 Sep 2008 at 3:50 pm 66 Qing This is the best tour for GUI I have ever seen. Thanks a lot! 67. on 13 Sep 2008 at 8:29 am 67 louis please help me in my project it is a dtmf door lock system, you must first creat e a password and then you must login in the keypad created using dtmf and enter your password correctly please help me i need to pass this on or before tuesday please guys to those who a re gifted with matlab skills…. thanks please email me at [email protected] if youll help il refer you to my school mates Godbless 68. on 13 Sep 2008 at 11:40 am 68Suraj Hi , This tutorial is of great help for me , i did create my own GUI with 2 push buttons and two text fields which take input for my second program I cannot figure outut a)I want to run my 2nd matlab program with the input given in the text fields on mouse click on the push button created. Thanks in advance. The code for my GUI is

% % % % % % % % % % % % % % % % % % % %

function varargout = samplegui1(varargin) SAMPLEGUI1 M-file for samplegui1.fig SAMPLEGUI1, by itself, creates a new SAMPLEGUI1 or raises the existing singleton*. H = SAMPLEGUI1 returns the handle to a new SAMPLEGUI1 or the handle to the existing singleton*. SAMPLEGUI1('CALLBACK',hObject,eventData,handles,...) calls the local function named CALLBACK in SAMPLEGUI1.M with the given input arguments. SAMPLEGUI1('Property','Value',...) creates a new SAMPLEGUI1 or raises the existing singleton*. Starting from the left, property value pairs are applied to the GUI before samplegui1_OpeningFcn gets called. An unrecognized property name or invalid value makes property application stop. All inputs are passed to samplegui1_OpeningFcn via varargin. *See GUI Options on GUIDE's Tools menu. Choose "GUI allows only one instance to run (singleton)". See also: GUIDE, GUIDATA, GUIHANDLES

% Edit the above text to modify the response to help samplegui1



% Last Modified by GUIDE v2.5 12-Sep-2008 20:08:16 % Begin initialization code - DO NOT EDIT gui_Singleton = 1; gui_State = struct('gui_Name', mfilename, ... 'gui_Singleton', gui_Singleton, ... 'gui_OpeningFcn', @samplegui1_OpeningFcn, ... 'gui_OutputFcn', @samplegui1_OutputFcn, ... 'gui_LayoutFcn', [] , ... 'gui_Callback', []); if nargin && ischar(varargin{1}) gui_State.gui_Callback = str2func (varargin{1}); end if nargout [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:}); else gui_mainfcn(gui_State, varargin{:}); end % End initialization code - DO NOT EDIT

% --- Executes just before samplegui1 is made visible. function samplegui1_OpeningFcn(hObject, eventdata, handles, varargin) % This function has no output args, see OutputFcn. % hObject handle to figure % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % varargin command line arguments to samplegui1 (see VARARGIN) % Choose default command line output for samplegui1 handles.output = hObject; % Update handles structure guidata(hObject, handles); % UIWAIT makes samplegui1 wait for user response (see UIRESUME) % uiwait(handles.figure1);

% --- Outputs from this function are returned to the command line. function varargout = samplegui1_OutputFcn (hObject, eventdata, handles ) % varargout cell array for returning output args (see VARARGOUT); % hObject handle to figure % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % Get default command line output from handles structure varargout{1} = handles.output;

function edit1_Callback(hObject, eventdata, handles ) % hObject handle to edit1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % Hints: get(hObject,'String') returns contents of edit1 as text % str2double(get(hObject,'String')) returns contents of edit1 as a double

% --- Executes during object creation, after setting all properties. function edit1_CreateFcn(hObject, eventdata, handles ) % hObject handle to edit1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - handles not created until after all CreateFcns called % Hint: edit controls usually have a white background on Windows. % See ISPC and COMPUTER. if ispc && isequal (get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColo set(hObject,'BackgroundColor','white'); end



function edit2_Callback(hObject, eventdata, handles ) % hObject handle to edit2 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % Hints: get(hObject,'String') returns contents of edit2 as text % str2double(get(hObject,'String')) returns contents of edit2 as a double

% --- Executes during object creation, after setting all properties. function edit2_CreateFcn(hObject, eventdata, handles ) % hObject handle to edit2 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - handles not created until after all CreateFcns called % Hint: edit controls usually have a white background on Windows. % See ISPC and COMPUTER. if ispc && isequal (get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColo set(hObject,'BackgroundColor','white'); end

% --- Executes on button press in pushbutton1. function pushbutton1_Callback(hObject, eventdata, handles ) % hObject handle to pushbutton1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)

% --- Executes on button press in pushbutton2. function pushbutton2_Callback(hObject, eventdata, handles ) % hObject handle to pushbutton2 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)

% -------------------------------------------------------------------function Untitled_1_Callback(hObject, eventdata, handles ) % hObject handle to Untitled_1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)

% --- Executes during object creation, after setting all properties. function figure1_CreateFcn(hObject, eventdata, handles ) % hObject handle to figure1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - handles not created until after all CreateFcns called

69. on 24 Sep 2008 at 9:37 pm 69MAksat It awful 70. on 13 Oct 2008 at 9:52 pm 70Felipe (Brazil) Thanks for the tutorial! It was very useful and works perfec tly! 71. on 18 Oct 2008 at 2:27 pm 71Roy This is indeed the best tutorial among all that I have found on the web so far. Thank you! I have a question regarding a specific feature I would like my GUI to have. I would like to have a different set of parameters for each of the items in the listbox. For example, if item 1 is selected, one set of parameters need to be input by the user by the GUI, but if item 2 is selected, a different set of parameters will need to be input. How can I do this? Thanks in advance!



72. on 19 Oct 2008 at 2:26 pm 72open_devel Thanks man. Good work! 73. on 23 Oct 2008 at 5:48 pm 73Base thanks man… very helpful 74. on 02 Nov 2008 at 9:33 pm 74tasya if we created this interface, how about the callback function we should write in? for examplee, the interface as u shown above, what should we write at t he callback(of add) button? so that when we pressing add, the numbers will be adding together and displayed the outcomes at the ’static box’ . i’m using visual v.7.2 matlab 75. on 02 Nov 2008 at 9:44 pm 75tasya i’ve created the GUI as u shown above..but how to insert the function in? so that it will give us the final results?help mee function varargout = untitled4(varargin) % UNTITLED4 M-file for untitled4.fig % UNTITLED4, by itself, creates a new UNTITLED4 or raises the existing % singleton*. % % H = UNTITLED4 returns the handle to a new UNTITLED4 or the handle to % the existing singleton*. % % UNTITLED4(’CALLBACK’,hObject,eventData,handles,…) calls the local % function named CALLBACK in UNTITLED4.M with the given input arguments. % % UNTITLED4(’Property’,'Value’,…) creates a new UNTITLED4 or raises the % existing singleton*. Starting from the left, prope rty value pairs are % applied to the GUI before untitled4_OpeningFunction gets called. An % unrecognized property name or invalid value makes property application % stop. All inputs are passed to untitled4_OpeningFcn via varargin. % % *See GUI Options on GUIDE’s Tools menu. Choose “GUI allows only one % instance to run (singleton)”. % % See also: GUIDE, GUIDATA, GUIHANDLES % Edit the above text to modify the response to help untitled4 % Last Modified by GUIDE v2.5 03-Nov-2008 11:28:26 % Begin initialization code - DO NOT EDIT gui_Singleton = 1; gui_State = struct(’gui_Name’, mfilename, … ‘gui_Singleton’, gui_Singleton, … ‘gui_OpeningFcn’, @untitled4_OpeningFcn, … ‘gui_OutputFcn’, @untitled4_OutputFcn, … ‘gui_LayoutFcn’, [] , … ‘gui_Callback’, []); if nargin && ischar(varargin{1}) gui_State.gui_Callback = str2func(varargin{1}); end if nargout [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});



else gui_mainfcn(gui_State, varargin{:}); end % End initialization code - DO NOT EDIT % — Executes just before untitled4 is made visible. function untitled4_OpeningFcn(hObject, eventdata, handles, varargin) % This function has no output args, see OutputFcn. % hObject handle to figure % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % varargin command line arguments to untitled4 (see VARARGIN) % Choose default command line output for untitled4 handles.output = hObject; % Update handles structure guidata(hObject, handles); % UIWAIT makes untitled4 wait for user response (see UIRESUME) % uiwait(handles.figure1); % — Outputs from this function are returned to the command line. function varargout = untitled4_OutputFcn(hObject, eventdata, handles) % varargout cell array for returning output args (see VARARGOUT); % hObject handle to figure % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % Get default command line output from handles structure varargout{1} = handles.output; function edit1_Callback(hObject, eventdata, handles) %what shud i write here? % hObject handle to edit1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % Hints: get(hObject,’String’) returns contents of edit1 as text % str2double(get(hObject,’String’)) returns contents of edit1 as a double % — Executes during object creation, afte r setting all properties. function edit1_CreateFcn(hObject, eventdata, handles) % hObject handle to edit1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - handles not create d until after all CreateFcns called % Hint: edit controls usually have a white background on Windows. % See ISPC and COMPUTER. if ispc && isequal(get(hObject,’BackgroundColor’), get(0,’defaultUicontrolBackgroundColor’)) set(hObject,’BackgroundColor’,'white’); end function edit2_Callback(hObject, eventdata, handles) % hObject handle to edit2 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)



% Hints: get(hObject,’String’) returns contents of edit2 as text % str2double(get(hObject,’String’)) returns contents of edit2 as a double % — Executes during object creation, afte r setting all properties. function edit2_CreateFcn(hObject, eventdata, handles) % hObject handle to edit2 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - handles not create d until after all CreateFcns called % Hint: edit controls usually have a white background on Windows. % See ISPC and COMPUTER. if ispc && isequal(get(hObject,’BackgroundColor’), get(0,’defaultUicontrolBackgroundColor’)) set(hObject,’BackgroundColor’,'white’); end % — Executes on button press in pushbutton1. function pushbutton1_Callback(hObject, eventdata, handles) % hObject handle to pushbutton1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) text3=edit1+edit2; <———-is this the correct way? %text3 is the final static box 76. on 03 Nov 2008 at 3:50 am 76 tasya i’m using the source code(which i dload from u) and try to run in matlab GUI V.7.2… but it state d error.. may i know why? 77. on 10 Nov 2008 at 3:55 pm 77 Chiaotinger This is really nice! I think I will put aside excel VBA and embrace MATLAB GUI now. Thank you:) 78. on 18 Nov 2008 at 12:53 am 78sasi hi, First of all thanks a lot for the tuorial.Found it rele help ful. But I get the same error despite following the same steps. The error goes like this: Undefined command/function ‘myadder_mainfcn’. Error in ==> MyAdder at 42 myadder_mainfcn(myadder_State, varargin{:}); Plz help me asap. 79. on 18 Nov 2008 at 11:58 am 79oasis hi! thanks for the tutorial…its very useful and easy to learn (^^)v thanks a lot to u 80. on 27 Nov 2008 at 4:51 pm 80pero please i need to make a button called browse to load image in axis i have 2 axis one for original image and second after applaying any filter i want to know as`uick how can ii do that



81. on 01 Dec 2008 at 6:09 am 81chetu Your tutorial is very helpful to me. 82. on 10 Dec 2008 at 11:05 am 82jane i would like to ask help with my program. i would like to make a GUI that will add, subtract, multiply and divide 2 numbers. display the result of each operation done. hope you can help me… i need to have the program….. thank you.. god bless 83. on 10 Dec 2008 at 11:14 am 83jane i want to make a program that will add, subtract, multiply and divide. i hope you can help me.. make the code 84. on 14 Dec 2008 at 5:09 pm 84karim Sorry, but really i need hepl. i am finishing my Phd and i have some Matlab program. i am not familiar with GUI but i want to do some thing good. maybe my problem is easy for some body but really i need help. ok i have the fowlling program (sorry the note is in frensh) what i want is: how to built a GUI where i can have a zone where i can specify : tp, tu, and dir without changing every time the value in my program (like a littel software) thank you (this is just a part of a huge program) % TTRS(SU)= TTRS(3=A)====>TTRS(SP1USP2)= TTRS(KUJ) clear all close all tp20=0.015; tu20=0.015 b=40; a=20; %%%%%%%%%Surface de posage secondaire%%%%%%%%% alpha20p1 =tp20/a %alpha20p1= a lpha de la phase 20 du posage primaire beta20p1 = tp20/b gamma20p1 = 0 u20p1 = 0 v20p1 = 0 w20p1 = tp20/2 %%%%%%%%%Surface de posage secondaire%%%%%%%%% alpha20p2 = 0 % alpha20p2 = alpha de la phase 20 du posage secondaire beta20p2 = tp20/a gamma20p2 = tp20/a u20p2 = tp20/2 v20p2 = 0 w20p2 = 0 %%%%%%%%%Surface usinée%%%%%%%%%%%%%%%%%%%%%%% alpha20u2 = 0 % alpha20u2 = alpha de la phase 20 de la surface usinée beta20u2max = tu20/a gamma20u2max = tu20/a u20u2max = tu20/2



v20u2 = 0 w20u2 = 0 TTRS202=[0 -beta20u2max 0; 0 beta20u2max 0; 0 0 -gamma20u2max ; 0 0 gamma20u2max ; -u20u2max 0 0 ; u20u2max 0 0]; %%%%%%%%%%%%POLYTOPE DE L ERREUR DE L USINAGE % % plot3(TTRS202(:,1),TTRS202(:,2),TTRS202(:,3),’k.’); % % xlabel(’bettaSU20′) % ylabel(’gammaSU20′) % Zlabel(’uSU20′) % title(’écart de la surface usinée de la phase20 ′) % % C5 = convhulln(TTRS202); % hold on % for o = 1:size(C5,1) % p = C5(o,[1 2 3 1]); % patch(TTRS202(p,1),TTRS202(p,2),TTRS202(p,3),rand,’FaceAlpha’,0.4,’FaceColor’,'yel’,'edgecolor’,'gre’); % end % % grid on %%%%%%%%%%%%%%%%%%%%%%%%%Calcul vectoriel%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%Surface priamire%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%% TP1 = [alpha20p1 u20p1; be ta20p1 v20p1; gamma20p1 w20p1] DP1 = [u20p1; v20p1; w20p1] ROT1 = [alpha20p1 ; beta20p1 ; gamma20p1] %%%%%%%%%%%%%%%%%%%Surface secondaire%%%%%%%%%%%%%%%%%%%%%%%%%%%%% TP2 = [alpha20p2 u20p2; be ta20p2 v20p2; gamma20p2 w20p2] DP2 = [u20p2; v20p2; w20p2] ROT2 = [alpha20p2 ; beta20p2 ; gamma20p2] %%%%%%%%%%%%%distance vers le centre de la surface primaire%%%%%%%% xA = 20; yA = 10; zA = 0; xB = 0; yB = 10; zB = 10; AB = [xB-xA; yB-yA; zB-zA] TP2M = cross(ROT2,AB) %%%%%%%%%%%surface secondaire vers le c entre du primaire%%%%%%%% TP2 = [alpha20p2 u20p2+TP2M(1); bet a20p2 v20p2+TP2M(1); gamma20p2 w20p2+TP2M(1)] %%%%%%%%%%%%%%Somme des torseurs des posages%%%%%%%%%%%% TTRSposage = TP1 + TP2 %%%%%% Dans ce programme nous allons identifier la classe d’appartenance de



%%%%%% la surface ou du TTRS mis en jeux pour une pièce cubique et dont les %%%%%% opérations sont de simples surfaçages. Rx =1; Ry =1; Rz = 1; x = 1; y = 1; z = 1; alpha=1; beta=1; gamma=1; u=1; v=1; w=1; dir = x ; % dir = direction, dir dans le cas d’un plan est sa normale (”case à remplire”) % SDT = [alpha beta gamma u v w]‘; % TTRSposage = TTRS_PL : développement de SDT_PL (PL = plan) multiplication % par la normale de la surface tolérancée if dir == x alpha = TTRSposage(1,1)*0 %(TTRSposage(i,j) = TTRSposage(ligne,colonne)) beta = TTRSposage(2,1)*1 gamma = TTRSposage(3,1)*1 u = TTRSposage(1,2)*1 v = TTRSposage(2,2)*0 w = TTRSposage(3,2)*0 TTRSpolyPosage = [alpha u; beta v; gamma w] TTRSpolyPosageMatrice =[0 -TTRSposage(2,1) 0; 0 TTRSposage(2,1) 0; 0 0 -TTRSposage(3,1) ; 0 0 TTRSposage(3,1) ; -TTRSposage(1,2) 0 0; TTRSposage(1,2) 0 0]; %%%%%%%%%%%%POLYTOPE DE L ERREUR DU MONTAGE % else if dir == y alpha = TTRSposage(1,1)*1 %(TTRSposage(i,j) = TTRSposage(ligne,colonne)) beta = TTRSposage(2,1)*0 gamma = TTRSposage(3,1)*1 u = TTRSposage(1,2)*0 v = TTRSposage(2,2)*1 w = TTRSposage(3,2)*0 TTRSpolyPosage = [alpha u; beta v; gamma w] else if dir == z alpha = TTRSposage(1,1)*1 %(TTRSposage(i,j) = TTRSposage(ligne,colonne)) beta = TTRSposage(2,1)*1 gamma = TTRSposage(3,1)*0 u = TTRSposage(1,2)*0 v = TTRSposage(2,2)*0 w = TTRSposage(3,2)*1 TTRSpolyPosage = [alpha u; beta v; gamma w] end end end %%%%%%%%%%%%%%%%%%%%% Dessin du polytope direction ‘x’ %%%%%%%%%%%%%%%%%% %%%%%%%%%%%



plot3(TTRSpolyPosageMatrice(:,1),TTRSpolyPosageMatrice(:,2),TTRSpolyPosageMatrice(:,3),’k.’); xlabel(’betta’) ylabel(’gamma’) Zlabel(’u') title(’écart du système de posage de la phase20 ′) C4 = convhulln(TTRSpolyPosageMatrice); hold on for n = 1:size(C4,1) m = C4(n,[1 2 3 1]); patch(TTRSpolyPosageMatrice(m,1),TTRSpolyPosageMatrice(m,2),TTRSpolyPosageMatrice(m,3),rand,’FaceAlpha’,0. end grid on % view([90 0]) %%%%%%%%%%%%%%%%%%%%% Dessin du polytope direction ‘y’ %%%%%%%%%%%%%%%%%% %%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%Dessin du polytope direction ‘z’%%%%%%%%%%% %%%%%%%%%%%%%%Somme de la variation de l’usiange et du posage sur la %%%%%%%%%%%%%%surface usinée%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % figure DD20=[]; for q=1:size(TTRS202,1); D20 = TTRS202 + [TTRSpolyPosageMatrice(q,:);TTRSpolyPosageMatrice(q,:);TTRSpolyPosageMatrice(q,:);TTRSpolyPosageMatrice(q,:); DD20=[DD20;D20]; % plot3(D20(:,1),D20(:,2),D20(:,3),’g.’); % % xlabel(’betta20 ′) % ylabel(’gamma20′) % zlabel(’u20′) % title(’somme des variations usinage + posage’) % C6 = convhulln(D20); hold on for k = 1:size(C6,1) l = C6(k,[1 2 3 1]); patch(D20(l,1),D20(l,2),D20(l,3),rand,’FaceAlpha’,0.8,’facecolor’,'red’); end end grid on 85. on 16 Dec 2008 at 9:40 pm 85Len Thank you for the wonderful tutorial. Keep up the great work (I am referring to the website and your act ual work) !!! 86. on 23 Dec 2008 at 2:45 pm 86 Reza It’s Excellent!! Thank you for useful tutorial 87. on 10 Jan 2009 at 12:39 am 87 Anonymous



I really liked this tutorial !! Thank you !! I have a question, i want to display a 3D model depending on the choice of the user, using the pop-up menu in the GUI. I am lost about how to write the code in the .m-file for this purpose. For example, if the user selects the model ‘pyramid’ from the pop-up menu, the pyramid model will be displayed. I don’t know how to set the handles to do all of this. Please help. Thanks 88. on 10 Jan 2009 at 12:39 am 88Melian I really liked this tutorial !! Thank you !! I have a question, i want to display a 3D model depending on the choice of the user, using the pop-up menu in the GUI. I am lost about how to write the code in the .m-file for this purpose. For example, if the user selects the model ‘pyramid’ from the pop-up menu, the pyramid model will be displayed. I don’t know how to set the handles to do all of this. Please help. Thanks 89. on 13 Jan 2009 at 9:49 pm 89ley hi, i want to combine three .m files into one .m file or can you teach me how to use GUI on this.. i appreciate any kind of help. thanks 90. on 16 Jan 2009 at 4:03 am 90roslina Instead of asking user to change some numbers in the m.file (the main program) before running the program, can we use GUI command to change the numbers in the m.file while executing the file? (What syntax/code to be used to ask user to input some numbers of certain parameter while running the program) 91. on 16 Jan 2009 at 12:26 pm 91Daniel Sutoyo @ Jane: Have you try the tutorial out yourself? The requests you have seem very doable on your own a fter completing the tutorial. @ Karim: Put your giant code in the button call back, prior to the code use get( ) just as it was described in this tutorial to get the values to be added. instead of two edit boxes, you need 3 edit boxes for your three parameters. @ Melian: “pyramid’ from the pop-up menu, the pyramid model will be displayed. I don’t know how to set the handles to do all of this” I am gonna assume you just need help to display. All you have to do is in your menu callback put in axes(’handles.name of your axes’). You can check the tag name in GUI builder and double click on the axes. Typically it is ‘axes#’ or something of that sort. So you type in axes(handles.axes1)… this tell MATLAB to display whatever plot function you use on that specific axis @ Rosalina: The two values to be added in the edit boxes are user submitted. Just replace the button callback (currently a+b) with your m.file, and you can change parameters on the fly. Use get( ) to get the values in the edit box. And have them set to the variables in your m.file 92. on 31 Jan 2009 at 8:03 pm 92Dan I used this tutorial to create my first GUI and it was extremely useful, thankyou. But I have a problem. Everything works perfectly in my GUI after I type “ GUIDE” in matlab, open the file, and press t he green arrow to start it. However if i try to open the GUI directly from the .fig file, it gives me a bunch of errors when i press the ‘calculate’ button. Is this a common problem?? Or have I done something wrong most likely? 93. on 03 Feb 2009 at 9:11 am 93izzuddin



hi, i need your help about my final year project.i have to do learning kit for control systems.for my first task i have to complete time response which include in the syllabus.time response contains step response and impulse response.i don’t know what is the coding for the transfer function.reply to my email asap.please help me… function varargout = time_response1(varargin) % TIME_RESPONSE1 M-file for time_response1.fig % TIME_RESPONSE1, by itself, creates a new TIME_RESPONSE1 or raises the existing % singleton*. % % H = TIME_RESPONSE1 returns the handle to a new TIME_RESPONSE1 or the handle to % the existing singleton*. % % TIME_RESPONSE1('CALLBACK',hObject,eventData,handles,...) calls the local % function named CALLBACK in TIME_RESPONSE1.M with the given input arguments. % % TIME_RESPONSE1('Property','Value',...) creates a new TIME_RESPONSE1 or raises the % existing singleton*. Starting from the left, property value pairs are % applied to the GUI before time_response1_OpeningFunction gets called. An % unrecognized property name or invalid value makes property application % stop. All inputs are passed to time_response1_OpeningFcn via varargin. % % *See GUI Options on GUIDE's Tools menu. Choose "GUI allows only one % instance to run (singleton)". % % See also: GUIDE, GUIDATA, GUIHANDLES % Copyright 2002-2003 The MathWorks, Inc. % Edit the above text to modify the response to help time_response1 % Last Modified by GUIDE v2.5 28-Jan-2009 13:56:14 % Begin initialization code - DO NOT EDIT gui_Singleton = 1; gui_State = struct('gui_Name', mfilename, ... 'gui_Singleton', gui_Singleton, ... 'gui_OpeningFcn', @time_response1_OpeningFcn, ... 'gui_OutputFcn', @time_response1_OutputFcn, ... 'gui_LayoutFcn', [] , ... 'gui_Callback', []); if nargin && ischar(varargin{1}) gui_State.gui_Callback = str2func (varargin{1}); end if nargout [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:}); else gui_mainfcn(gui_State, varargin{:}); end % End initialization code - DO NOT EDIT

% --- Executes just before time_response1 is made visible. function time_response1_OpeningFcn(hObject, eventdata, handles, varargin) % This function has no output args, see OutputFcn. % hObject handle to figure % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % varargin command line arguments to time_response1 (see VARARGIN) % Choose default command line output for time_response1 handles.output = hObject; % Update handles structure guidata(hObject, handles); initialize_gui(hObject, handles, false ); % UIWAIT makes time_response1 wait for user response (see UIRESUME) % uiwait(handles.figure1);



% --- Outputs from this function are returned to the command line. function varargout = time_response1_OutputFcn (hObject, eventdata, handles ) % varargout cell array for returning output args (see VARARGOUT); % hObject handle to figure % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % Get default command line output from handles structure varargout{1} = handles.output;

function a_input_Callback(hObject, eventdata, handles ) % hObject handle to a_input (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % Hints: get(hObject,'String') returns contents of a_input as text % str2double(get(hObject,'String')) returns contents of a_input as a double a_input = str2double(get(hObject, 'String')); if isnan(a_input) set(hObject, 'String', 0); errordlg('Input must be a number' ,'Error'); end % Save the new value handles.metricdata.a_input = a_input; guidata(hObject,handles)

% --- Executes during object creation, after setting all properties. function a_input_CreateFcn(hObject, eventdata, handles ) % hObject handle to a_input (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - handles not created until after all CreateFcns called % Hint: edit controls usually have a white background on Windows. % See ISPC and COMPUTER. if ispc && isequal (get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColo set(hObject,'BackgroundColor','white'); end %-------------------------------------------------------------------------% --- Executes on button press in plot_pushbutton1. function plot_pushbutton1_Callback(hObject, eventdata, handles ) % hObject handle to plot_pushbutton1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % Get user input from GUI a_input = str2double(get(handles.a_input,'String'));

%-------------------------------------------------------------------------% --- Executes on button press in reset_pushbutton2. function reset_pushbutton2_Callback(hObject, eventdata, handles ) % hObject handle to reset_pushbutton2 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) initialize_gui(gcbf, handles, true); function initialize_gui(fig_handle, handles, isreset ) % If the metricdata field is present and the reset flag is false, it means % we are we are just re-initializing a GUI by calling it from the cmd line % while it is up. So, bail out as we dont want to reset the data. if isfield(handles, 'metricdata') && ~isreset return; end handles.metricdata.a_input = 0;



set(handles.a_input, 'String', handles.metricdata.a_input );

% -------------------------------------------------------------------function menu_Callback(hObject, eventdata, handles ) % hObject handle to menu (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)

% -------------------------------------------------------------------function open_Callback(hObject, eventdata, handles ) % hObject handle to open (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) file = uigetfile('*.fig'); if ~isequal(file, 0) open(file); end % -------------------------------------------------------------------function print_Callback(hObject, eventdata, handles ) % hObject handle to print (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) printdlg(handles.figure1) % -------------------------------------------------------------------function close_Callback(hObject, eventdata, handles ) % hObject handle to close (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) selection = questdlg(['Close ' get(handles.figure1,'Name') '?'],... ['Close ' get(handles.figure1,'Name') '...'],... 'Yes','No','Yes'); if strcmp(selection,'No') return; end delete(handles.figure1)

94. on 17 Feb 2009 at 1:41 pm 94Sagar I am graduate student at University of Cincinnati. I need to read few variables through GUI mode of MATLAB, store them and use them in other .m files which I have already developed. I went through your tutorials and found them very useful for GUI design purposes. I m having hard time in reading and storing variables. Right now structure of my GUI is: I have 5 variables to read so i hve 5 Static text and 5 edit text buttons. I have added 1 push button which says enter a nd in the callback of ENTER i have added these lines: output.data1=get(handles.data1,’string’) . Could you please tell if this is right? and how can I store them? because I cant see the values which MATLAB reads in command line or so. 95. on 18 Feb 2009 at 10:53 pm 95shayam hi sir.. thanks a lot for u r tutorial… its awesome.. only because of this i was able to complete Adding GUI to my project… thanks….



96. on 20 Feb 2009 at 11:51 pm 96 Quan Quach Sagar, Try this tutorial: http://blinkdagger.com/matlab/matlab-gui-tutorial-a-brief-introduction-to-handles If you use the keyboard/breakpoint command then you can see whats going on inside your GUI by exploring the local workspace. Quan 97. on 26 Feb 2009 at 5:48 am 97 Sebas Hi! Thanks for this tutorial! But I do have a question: can you give input to an GUI, and use this input when pressing the push button? Thank 98. on 27 Feb 2009 at 6:21 am 98Kuzya Thanks for the tutorial …. loved it . may be you can post a tutorial about creating stand alone application? most of what I found over the net isn’t so simple and hard to understand. p.s. you also can replay to my e-mail address if it is convinient for you . Thanks . 99. on 05 Mar 2009 at 12:35 pm 99kartik great thread !!!!!!!!!! Can anybody help me,how to move from one GUI to a nother GUI.Its like going from welcome screen gui to the operational gui. by making use of push butt on. waiting for replyy!!!!??? thank you 100. on 05 Mar 2009 at 3:59 pm 100Daniel @ Sebas yes you can! There are multiple ways in getting an input. Edit text box, radio button, popup menu… you name it. All you have to put in your pushbutton callback is to use the function get() on the objects you need information from. If you go to our MATLAB > basic GUI pages there are many examples of how this is done! @ Kuzya We will when we get some time! @ kartik In your button callback put in the following figurefilename(handles) handles if you want to pass data 101. on 15 Mar 2009 at 12:08 pm 101Ahmad Jamil Thanks very much………… This tutorial helped me a lot by creating my first GUI file………………Thanks again



102. on 18 Mar 2009 at 12:19 am 102Jorge Becerra I have this error: >> Calc_DistanciaRadTierraVr1Test1 ??? Undefined function or variable “designEval”. Error in ==> gui_mainfcn at 97 if designEval && ishandle(fig) Error in ==> Calc_DistanciaRadTierraVr1Test1 at 42 gui_mainfcn(gui_State, varargin{:}); My both files .fig and .m stay in the same archive, pls. help me. 103. on 19 Mar 2009 at 3:49 am 103philip i have a problem with my gui file.it dose only run with GUIDE BUILDER. give me a solutin for this. 104. on 21 Mar 2009 at 12:58 am 104wena hi! I am having a problem creating my project. How can i call an m-file which i have created in the editor using the gui. for example, i have a button tagged bisection in my gui, what i want is when i press this button the m-file bisection will execute. please help.. this is a project of mine in school. 105. on 23 Mar 2009 at 1:43 am 105Dimitrios Good tutorial! thank you verry much! 106. on 24 Mar 2009 at 6:41 am 106 moe hi im trying to load values from edit box to matlab workspace, i was wondering if someone could help me with that. thanks in advance. 107. on 24 Mar 2009 at 1:53 pm 107 hazeem thaaaaaaaaaaaaaaaaaaaaaaaaaaaaaanks 108. on 28 Mar 2009 at 7:42 pm 108naxus hi, what should i do if i want to input 2 texts, lets say a and b, and then process them in a separat e m-file, lets say process.m, and then display the result, lets say c, a t the GUI? 109. on 29 Mar 2009 at 6:30 pm 109David Thanks for being so selfless and posting this knowledge on the web for everyone to access. 110. on 30 Mar 2009 at 7:16 am 110Zane Montgomery Naxus, You shouldn’t have an issue calling the function ‘process.m’ in your GUI .m file as long as the inputs/outputs (aka arguments) match up. In your GUI you would want t o have something like this: c = process(a,b); disp(c) % or whatever display code you may want. Look into a static text box.

This requires process.m to be in the same folder as your GUI files, but if it’s not, you can use the a ddpath feature which is talked about here:



http://blinkdagger.com/?s=addpath#4 good luck, Zane 111. on 30 Mar 2009 at 9:38 pm 111Offi Hey! Thanks for the tutorials on your site. They’re really helpful! I got a problem with the edit text though. I was trying to check t he string inside the edit field after every ke ystroke so i used the KeypressFcn. The problem is that the ‘String’ value of the edit field isn’t updated after the keystroke but only after the callback i think although the pressed key already shows up in the GUI itself. Does anyone know how to force MATLAB to update the ‘String’ value or is there another value that actually represents the string shown in the edit text? 112. on 01 Apr 2009 at 2:02 am 112k8 Thank you very much!!! 113. on 08 Apr 2009 at 12:28 am 113naxus thanks, Zane! i’ll try doing that 114. on 11 Apr 2009 at 8:21 am 114vinod this is a very good tutorial . thank u very much for this one. 115. on 14 Apr 2009 at 7:50 am 115moe hi i have to use a check box to give the user the option to hold the graph that has been plotted by a push button, can someone please help me how i can programm the check box? thanks in advance 116. on 14 Apr 2009 at 8:54 am 116 Zane Montgomery Moe, The these tutorials should be able to help you out with plotting the data: http://blinkdagger.com/matlab/matlab-gui-tutorial-plotting-data-axes The key code you’ll be needing will be something like this: For your checkbox callback function if(get(hObject,'Value'))==1 %Checked box has 'Value' of 1 hold on else hold off end % hold prevents the current axes from being overwritten when you plot a new graph

to hold a specific axes if you have multiples use: hold(handles.AxisName, ‘on’) I’ll leave it to you to play around with this. HTH, Zane 117. on 15 Apr 2009 at 8:53 am 117 Zane Montgomery



@ Offi, I talked with Doug at MathWorks ( http://blogs.mathworks.com/videos/ ). The conclusion was that “unfortunately, the change in the edit box string does not really register in MATLAB until you hit enter, or change focus in the GUI”. So it won’t update after eve ry keystroke. You might be able to embed ActiveX or Java cont rols if you really need this to happen, but it’s outside of my abilities. Good luck, Zane 118. on 15 Apr 2009 at 9:01 am 118moe thank you very much Zane 119. on 16 Apr 2009 at 1:29 am 119Vander Thanks! 120. on 16 Apr 2009 at 11:42 am 120Dianna Hi again, Is it possible to ’set’ the answer? Suppose I don’t want the answer to the a negative number. If the answer is going to be negative, I want the static text of the answer to be automatically be 0. Do I use the code ‘if’? total = str2num(a) + str2num(b); c = num2str(total); if (c < 0) %c is the answer for the calculation c = 0; else c = num2str(total); end

121. on 16 Apr 2009 at 12:15 pm 121Dianna Hey, I just got it to work. So never mind my question 122. on 17 Apr 2009 at 7:33 am 122moe Hi i have a situation that i have a GUI with some edit text box that each box views a parameter from the work space , the task is to modify and replace the new pa rameter with the existing one in the work space. can someone please help me? thanks very much in advance 123. on 21 Apr 2009 at 8:37 pm 123Offi Thanks a lot Zane! It’s really great of you guys not just to give those great and easy to understand tutorials but also provide help with problems! 124. on 26 Apr 2009 at 10:48 am 124lakshman hia thanks for tutorial can you show me a simple example of signal i mean if we want to create sine wave how we do that 125. on 28 Apr 2009 at 4:52 am 125Toon



IT IS FUCKING USEFULL! thx:) 126. on 07 May 2009 at 1:04 am 126 Anonymous I tried this demo, but It wouldnt work. I got this error message. Also, “get” and “ num2str” didnt turn blue like shown. Can you tell me whats wrong? >> MyAdder ??? Error: File: MyAdder.m Line: 126 Column: 12 Expression or statement is incorrect–possibly unbalanced (, {, or [. 127. on 07 May 2009 at 7:02 am 127 Zane Montgomery Anon, Don’t worry about the coloring you see from the site, not everything matches up perfectly. It’s mainly just a visual aide when explaining the code. MATLAB is very specific about opening and closing brackets/parentheses/etc. Che ck out your line 126 (or post it here) and make sure you’ve closed every bracket you open and don’t have any loose ones floating around. Good luck Zane 128. on 12 May 2009 at 9:04 am 128eastmus Hi Zane again and hi to all, i have a “beginner” problem with matlab R2007b. Whenever I create a GUI and save it in a folder somewhere (doesnt matter), then I create a 2nd GUI, totally different name and files and I have even tried saving in same folder or a different folder from the 1st GUI. But then when I re-open the 1st GUI, it gives errors that it cant find the variables from the script file (.m). Its like the .m and .fig are not linked anymore. I also often get the window popup saying “File C:\…..\file.m is not found in the current directory or on the mathlab path.” with the options to change dir, add to path or cancel/help. I usually pick add to path. In the file.m editor i can click on “Edit configurations for file.m” (its located under the green RUN arrow button, you can reach it by clicking the small arrow down next to it) In there i see a lot of files that are actually other projects and have nothing to do with this current file. So I delete the others. Also when I move files, they stop working I cant find the configuration to actually seperate projects from each other and how to re-link m-file with the fig-file 129. on 13 May 2009 at 11:30 am 129mmb4good thanks alot 130. on 14 May 2009 at 1:50 am 130Berkan The official MatLab GUIDE video does not explain the most important bit: callback functions at the backend. This is in contrast is an excellent tutorial, thank you for your effort. peace,



Berkan 131. on 15 May 2009 at 10:14 pm 131Payam Hi thank you for your wonderful site. I have a problem I can not save a variable inside my GUI I use a GUI to get an equa tion for me and save it as a variable but it only prints the answer on Matlab command window on push button press. When i put my command on output function it dows not get any e quation it shows zero only. How can i use the output function? Thanks a lot 132. on 16 May 2009 at 2:56 pm 132Anudhan Thank you. This tutorial helped me a lot…….. 133. on 18 May 2009 at 2:55 am 133inu waaaaaah……….. what a great innovation!!!!!!!!!! u know saracasm….i guess 134. on 19 May 2009 at 7:08 pm 134usman I have used three push buttons in my GUI now i want to use the output results of the two push buttons dat goes to a static text box to be called in the third pushbutton call back as input; e.g if output of the first push button is “a” and out put of second push button is “b” then i want to call both thses outputs in pushbutton three to do c=a+b; and then store to another static text kindly answer ASAP how to do this? 135. on 21 May 2009 at 2:17 pm 135Doğ uş Metin these are really very good examples for people new on matlab gui. its possible to understand ea sily. thanks for all. 136. on 21 May 2009 at 11:18 pm 136 Praveen Dear sir, Thank you very much for this simple and useful tutorial on GUI in matlab, expecting more tutorials like this. 137. on 23 May 2009 at 6:49 am 137 zak hi you can’t believe how much i was happy when i have run the first matlab GUI, thank you for making the impossible (for me) possible. i will study all the other tutorials thanks 138. on 28 May 2009 at 5:35 pm 138Bilal Hussain Thankyou brother



139. on 03 Jun 2009 at 3:12 am 139Güncel ve Günlük Blog! | JunkChorn » Hocam Sesimi Duyuyor Musun? #3 [...] Ebrar denen şahsiyet ile hiç işim olmaz. Buyrun, ödevdeki butonlara görev atamayı anlatan çok güzel bir blog. Bunun arkadan konuşmak olduğunu düşünüyor da olabilirsiniz, ama ben yarg ısız infaz [...] 140. on 09 Jun 2009 at 3:46 am 140asder don Great tutorial, I still have some questions though. What do I have to do differently to make the push button t ake the factorial of the variable? The tags and strings are a bit confusing, not to mention the whole coding of the .m file afterward. An e-mail response would be greatly appreciated. Thanks 141. on 09 Jun 2009 at 3:36 pm 141Zane Montgomery @ asder, To get a grasp on the strings and tags, I recommend following each step in the tutorial and ask questions on specific parts if they arise. To display the factorial of some input number, t he main part you will want to edit is Step 4 of the “Writing the Code for the GUI Callbacks” section. Find the section that looks similar to what I have below, but notice the changes: a b % %

= get(handles.input1_editText,'String'); = get(handles.input2_editText,'String'); a and b are variables of Strings type, and need to be converted to variables of Number type before they can be added together

total = factorial(str2num(a)) %CHANGE IS HERE, b is now ignored completely c = num2str(total); % need to convert the answer back into String type to display it set(handles.answer_staticText,'String',c); guidata(hObject, handles);

Let us know if you have specific questions. -Zane 142. on 10 Jun 2009 at 12:31 am 142asder don Zane, This is pretty much what I did, except I emitted b since I only have one edit text. It doesn’t seem to work, however. I get something similar to 175.001 as the answer re gardless of what I put in. Here is a screenshot of what I have. The strings and tags are the same, save for the push button which is tagged “factorize_pushbutton1″ http://img188.imageshack.us/img188/2361/54570432.png Again, thank you. 143. on 10 Jun 2009 at 1:10 am 143asder don I just got it! The command is apparently; total = gamma (str2num (a) + 1); Thank you. 144. on 10 Jun 2009 at 1:17 am 144dileep d Dear friends, I went through the mail chain.I am a student(masters), i want to take input form a hardware device(particularly ultrasound probe) in real time and plot t he input data in real time.



since i am new to matlab, some matlab experts out here can help me. I dont have any idea if this can be done in matlab or not, but i request if some body know it to help me to do t his. Regards, DIleep. email id:[email protected] 145. on 10 Jun 2009 at 1:17 am 145dileep d Dear friends, I went through the mail chain.I am a student(masters), i want to take input form a hardware device(particularly ultrasound probe) in real time and plot t he input data in real time. since i am new to matlab, some matlab experts out here can help me. I dont have any idea if this can be done in matlab or not, but i request if some body know it to help me to do t his. after this i want to develope a gui for this. Regards, DIleep. email id:[email protected] 146. on 10 Jun 2009 at 9:00 am 146 Anonymous I DID’NT GET ANSWERE FOR ANY VALUES THE ANSWERBOX SHOWS 0 ONLY WHY 147. on 10 Jun 2009 at 9:07 am 147 Anonymous ?? Reference to non-existent field ‘input1_editText’. Error in ==> MAGUI>add_pushbutton_Callback at 150 a = get(handles.input1_editText,’String’); Error in ==> gui_mainfcn at 96 feval(varargin{:}); Error in ==> MAGUI at 42 gui_mainfcn(gui_State, varargin{:}); Error in ==> guidemfile>@(hObject,eventdata)MAGUI(’add_pushbutton_Callback’,hObject,eventdata,guidata(hObject)) ??? Error while evaluating uicontrol Callback 148. on 10 Jun 2009 at 9:08 am 148Anonymous ?? Reference to non-existent field ‘input1_editText’. Error in ==> MAGUI>add_pushbutton_Callback at 150 a = get(handles.input1_editText,’String’); Error in ==> gui_mainfcn at 96 feval(varargin{:}); Error in ==> MAGUI at 42 gui_mainfcn(gui_State, varargin{:});



Error in ==> guidemfile>@(hObject,eventdata)MAGUI(’add_pushbutton_Callback’,hObject,eventdata,guidata(hObject)) ??? Error while evaluating uicontrol Callback I GOT ABOVE ERROR WHAT CAN I DO 149. on 11 Jun 2009 at 5:41 am 149lakshman ?? Reference to non-existent field ‘input1_editText’. Error in ==> MAGUI>add_pushbutton_Callback at 150 a = get(handles.input1_editText,’String’); Error in ==> gui_mainfcn at 96 feval(varargin{:}); Error in ==> MAGUI at 42 gui_mainfcn(gui_State, varargin{:}); Error in ==> guidemfile>@(hObject,eventdata)MAGUI(’add_pushbutton_Callback’,hObject,eventdata,guidata(hObject)) ??? Error while evaluating uicontrol Callback what is the mistake 150. on 18 Jun 2009 at 10:52 am 150Quan, you're my GUI hero Hi Quan, I’m a senior in college, and I needed a job during the summer. I just started working about a month ago. My boss wanted me to GUIs with MATLAB (as well as other MATLAB related tasks). My MATLAB skills aren’t the greatest, and I didn’t know MATLAB could make GUIs before then. I was too scared to tell my boss that I’m useless. So naturally, I turned to the internet for help. I’m so glad I found your site! I’ve read all of your GUI posts and almost every other blinkdagger post (you guys just make it interesting). Thank you! My job is safe because of blinkdagger (Quan in particular)! Again, you guys do amazing work and you’ve really helped me out! I’m suprised that I’m act ually excited about MATLAB now. Thanks! I was wondering if you’d perhaps do a tutorial on Active X controls someday…. Thanks again, Joe 151. on 19 Jun 2009 at 4:42 am 151shalomi Thank you! very helpful and clear tutorial. 152. on 19 Jun 2009 at 10:02 pm 152usha this code great help to me.. i run add program.. how to clear te xt field 153. on 13 Jul 2009 at 6:39 pm 153siti how to make a GUI when i click the pushbutton on “ start” it can control the scanner interface.means when i click a buton in GUI, scanner interface will comeout..how to make it happen? 154. on 20 Jul 2009 at 1:36 pm 154Meteja Hi there…. Excellent tutorial….really help me a lot… but i’ve got one question and need your favour/help…. how to open a .txt file and display it on the static text….for example let say readme.txt file which consist of numbers and words/text…



Thanks 155. on 22 Jul 2009 at 1:52 am 155Dhila Othman Thank for all the guidelines…. It’a very helpful!!!!! 156. on 23 Jul 2009 at 3:49 pm 156 Astromoof Hi, i like your myadder gui, but i want it so as the user types in the inputs it automatically updates the answer box without using a pushbutton. Is that possible? Thanks 157. on 26 Jul 2009 at 8:59 am 157 Zane Montgomery Astromoof, It is not possible to have the inputs update while you’re typing, but you can type in an input and then either: click away from the box, or hit ‘enter ’ and have them update. To do this, just put the code for you pushbuttoncallback into the callback function for the edit text box. Good luck! -Zane 158. on 29 Jul 2009 at 5:01 am 158lakshman hai thanks for ur model. if we want take some text as input and the value of text is declared in workspace how? 159. on 29 Jul 2009 at 9:29 pm 159Amgalan Hi? I made one interface in Matlab. that is running now. But I wanna to rearrange that GUI. So that I want to know “ How to apply TAB strip in Marlab? ” Is there anyone help me? 160. on 05 Aug 2009 at 2:20 am 160lak hai thanks for ur model. if we want take some text as input and the value of text is declared in workspace how? 161. on 12 Aug 2009 at 12:20 am 161Chiara Hi, i’m an italian student, and i’m trying to make a GUI, but i’ve a problem. When I use ‘global’ in a function to call a variable defined in an other GUI function, matlab draws attention with an error. If I define the variable in the first function, so without use global, matlab doesn’t give me any errors!! For examples, global intermedio; I=im2double(intermedio); where the variable ‘intermedio’ is defined above, in another GUI function. Matlab gives me an error. But if i define ‘intermedio’ in this function, i haven’t bugs! Is there anyone help me?..thank u all, and sorry for my bad english!



162. on 15 Aug 2009 at 6:52 am 162dbsjro Man this is REALLY helpfull You should be as ->help Quan Quach < lol 163. on 22 Aug 2009 at 12:19 am 163Zor Excellent tut Thanx for the effort! 164. on 22 Aug 2009 at 7:05 am 164vinodh hi this website is very very useful.thank you very much. 165. on 28 Aug 2009 at 10:59 pm 165daba Thanks 166. on 01 Sep 2009 at 10:55 am 166 mark it’s possible to use GUI to create a moving point or something like a 2D randon walker? Many thanks 167. on 08 Sep 2009 at 8:18 am 167 Herman It’s very powerful! Many thanks for your tutorial…Makes more open my eyes about powerful of matlab. 168. on 09 Sep 2009 at 8:50 pm 168ruchita how to add a circuit diagram in a gui figure 169. on 10 Sep 2009 at 8:57 am 169mark Please can someone asnwer me?..it’s possible to use GUI to creat e a moving point or something like a 2D randon walker? Many thanks 170. on 10 Sep 2009 at 11:46 pm 170mirza mirza gango hy 171. on 24 Sep 2009 at 12:38 am 171CB ??? Error using ==> str2num at 33 Requires string or character array input. Error in ==> GUIMagnetfalt>calc_button_Callback at 450 total= str2num(a) + str2num(b) + str2num(c) + str2num(d) + str2num(e) + str2num(f) + str2num(g) str2num(h) + str2num(i); Error in ==> gui_mainfcn at 96 feval(varargin{:}); Error in ==> GUIMagnetfalt at 42 gui_mainfcn(gui_State, varargin{:}); Error in ==> guidemfile>@(hObject,eventdata)GUIMagnetfalt('calc_button_Callback',hObject,eventdata,guidata

??? Error while evaluating uicontrol Callback

I try to add the numbers, however Matlab complains that input should be done in an array. W hat may be the problem? Is num supposed to be in an array? What type (e.g. num, double, int or char) should I use if I just want to convert input



string and add them together? 172. on 26 Sep 2009 at 12:00 am 172Niketan changes made by niketan type this at matlab command to check whether specify file is original or copied your current dir want to be directory, where your specifed file is. ———————— [a direc] = dos(’dir Target_Detection.m’); % Obtain the directory listing of the file on the operating system newlines = find(double(direc) == 10); % Check for newline characters in the returned string dateloc = newlines(5)+1; % In DOS, the creation date for the file will show up at the fifth line of the output createDate = direc(dateloc:(dateloc+21)); % Retrieve the creation date in a string [y, m, d, h, mn,s] = datevec(createDate); UserFiledate = datenum(y, m, d, h, mn,s); OriginalFileDate = datenum(2009,09,26,12,13,0); if (UserFiledate > OriginalFileDate) % Check if the createDate for the file is later that a specific time disp(’Copied File’) else disp(’Original File’) end 173. on 01 Oct 2009 at 11:38 pm 173minjae Hi, I’m a university student in Korea. This website is awesome and very useful for anyone who studies MATLAB, like me! I sincerely appreciate your job. Thank you! 174. on 09 Oct 2009 at 5:53 pm 174Craig Thanks SO much for this website. As a newbie to MATLAB I was going nutty reading help files and the Mathworks website. After reading your tutorials the mist has parte d. 175. on 18 Oct 2009 at 7:09 am 175Gustav Thanks, the example is simple and clear for beginners. 176. on 21 Oct 2009 at 4:56 am 176 selva thank you sir great tutorial,thx for the t utorial 177. on 22 Oct 2009 at 9:00 pm 177 Berlyn how can i downlaod matlab? 178. on 06 Nov 2009 at 9:53 am 178piyush Please tell me, what code shall i include, if I want a close push button and perform a simple GUI close. 179. on 10 Nov 2009 at 11:44 pm 179Megalla hi there…thanks 4 the perfect tutorial….it was a very easy-to-understand tutorial…;-) but i need some one who can help me out in coming out with a loop like a for loop and all using MATLAB ….so if anyone can help me….pls do kindly mail me at [email protected] …i dont mind paying u’ll…. thanks a lot



180. on 14 Nov 2009 at 12:50 pm 180Gav Very helpfull introduction. 181. on 16 Nov 2009 at 7:16 am 181momena thanks a lot dear….i actually knew nothing about creat ing GUI….but now i can make one 182. on 17 Nov 2009 at 2:36 pm 182Zox Hello everyone, Does anyone please know how to make a n input using ‘e’? For example, i’d like to input number 2e-25 - and surely i would like to avoid typing the whole number with this many decimals! Is there any chance that i could do this in more elegant way? Thanx a lot! 183. on 17 Nov 2009 at 3:55 pm 183Zane Montgomery Zox, Your syntax of ‘2e-25′ should work as an input. Let us know if you get any e rrors using that or if you have a specific usage question. 184. on 29 Nov 2009 at 7:09 pm 184Satvik Hey , Great Tutorial I was wondering if you could add t o the “gcf” part of a designing a GUI. Cheers 185. on 30 Nov 2009 at 9:47 pm 185valerie hi May i know how to view a web cam inside the GUI interface? Thanks valerie 186. on 01 Dec 2009 at 6:15 pm 186 Sammy hi Firstly thx for your tutorials. Really helpful for beginners like me. keep it up. the problem i’m facing is that i’m writting a program that enables a user to enter values into the gui like the start time and stop and then click a button that will then plot either a sine wave or unit step function depending on the button pressed. I have tried to follow your tutorials and incoperate the different functionalities but it not working. below is piece of my code, pliz help me figure out the problem. thanks again. function varargout = untitled(varargin) % UNTITLED M-file for untitled.fig % UNTITLED, by itself, creates a new UNTITLED or raises the existing % singleton*. % % H = UNTITLED returns the handle to a new UNTITLED or the handle to % the existing singleton*. %


% % % % % % % % % % % % %


UNTITLED('CALLBACK',hObject,eventData,handles,...) calls the local function named CALLBACK in UNTITLED.M with the given input arguments. UNTITLED('Property','Value',...) creates a new UNTITLED or raises the existing singleton*. Starting from the left, property value pairs are applied to the GUI before untitled_OpeningFcn gets called. An unrecognized property name or invalid value makes property application stop. All inputs are passed to untitled_OpeningFcn via varargin. *See GUI Options on GUIDE's Tools menu. Choose "GUI allows only one instance to run (singleton)". See also: GUIDE, GUIDATA, GUIHANDLES

% Edit the above text to modify the response to help untitled % Last Modified by GUIDE v2.5 02-Dec-2009 00:31:13 % Begin initialization code - DO NOT EDIT gui_Singleton = 1; gui_State = struct('gui_Name', mfilename, ... 'gui_Singleton', gui_Singleton, ... 'gui_OpeningFcn', @untitled_OpeningFcn, ... 'gui_OutputFcn', @untitled_OutputFcn, ... 'gui_LayoutFcn', [] , ... 'gui_Callback', []); if nargin && ischar(varargin{1}) gui_State.gui_Callback = str2func (varargin{1}); end if nargout [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:}); else gui_mainfcn(gui_State, varargin{:}); end % End initialization code - DO NOT EDIT

% --- Executes just before untitled is made visible. function untitled_OpeningFcn(hObject, eventdata, handles, varargin) % This function has no output args, see OutputFcn. % hObject handle to figure % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % varargin command line arguments to untitled (see VARARGIN) % Choose default command line output for untitled handles.output = hObject; % Update handles structure guidata(hObject, handles); % UIWAIT makes untitled wait for user response (see UIRESUME) % uiwait(handles.figure1);

% --- Outputs from this function are returned to the command line. function varargout = untitled_OutputFcn(hObject, eventdata, handles ) % varargout cell array for returning output args (see VARARGOUT); % hObject handle to figure % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % Get default command line output from handles structure varargout{1} = handles.output; %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %DO NOT ALTER THE CODE ABOVE %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

function Start_editText_Callback(hObject, eventdata, handles ) % hObject handle to Start_editText (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB



% handles structure with handles and user data (see GUIDATA) % Hints: get(hObject,'String') returns contents of Start_editText as text % str2double(get(hObject,'String')) returns contents of Start_editText as a double input = str2double(get(hObject,'String')); guidata(hObject, handles); % --- Executes during object creation, after setting all properties. function Start_editText_CreateFcn(hObject, eventdata, handles ) % hObject handle to Start_editText (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - handles not created until after all CreateFcns called % Hint: edit controls usually have a white background on Windows. % See ISPC and COMPUTER. if ispc && isequal (get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColo set(hObject,'BackgroundColor','white'); end

function Stop_editText_Callback(hObject, eventdata, handles ) % hObject handle to Stop_editText (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % Hints: get(hObject,'String') returns contents of Stop_editText as text % str2double(get(hObject,'String')) returns contents of Stop_editText as a double input = str2doudle(get(hObject,'String')); guidata(hObject, handles); % --- Executes during object creation, after setting all properties. function Stop_editText_CreateFcn(hObject, eventdata, handles ) % hObject handle to Stop_editText (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - handles not created until after all CreateFcns called % Hint: edit controls usually have a white background on Windows. % See ISPC and COMPUTER. if ispc && isequal (get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColo set(hObject,'BackgroundColor','white'); end

function Step_editText_Callback(hObject, eventdata, handles ) % hObject handle to Step_editText (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % Hints: get(hObject,'String') returns contents of Step_editText as text % str2double(get(hObject,'String')) returns contents of Step_editText as a double input = str2double(get(hObject,'String')); guidata(hObject, handles); % --- Executes during object creation, after setting all properties. function Step_editText_CreateFcn(hObject, eventdata, handles ) % hObject handle to Step_editText (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - handles not created until after all CreateFcns called % Hint: edit controls usually have a white background on Windows. % See ISPC and COMPUTER. if ispc && isequal (get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColo set(hObject,'BackgroundColor','white'); end

function Frequency_editText_Callback(hObject, eventdata, handles ) % hObject handle to Frequency_editText (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)



% Hints: get(hObject,'String') returns contents of Frequency_editText as text % str2double(get(hObject,'String')) returns contents of Frequency_editText as a double input = str2double(get(hObject,'String')); guidata(hObject, handles); % --- Executes during object creation, after setting all properties. function Frequency_editText_CreateFcn(hObject, eventdata, handles ) % hObject handle to Frequency_editText (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - handles not created until after all CreateFcns called % Hint: edit controls usually have a white background on Windows. % See ISPC and COMPUTER. if ispc && isequal (get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColo set(hObject,'BackgroundColor','white'); end %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %CODE ABOVE FOR EDIT TEXT %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

% --- Executes on button press in Step_pushbutton. function Step_pushbutton_Callback(hObject, eventdata, handles ) % hObject handle to Step_pushbutton (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) start_time =get(handles.start_editText,'String'); step_time = get(handles.step_editText,'String'); stop_time = get(handles.stop_editText,'String'); axes(handles.axes1) t = [ 0 start_time step_time stop_time ] %defining the X-axis m = [ 0 0 1 1] %defining the Y-axis plot ( t,m ) %plots the graph of all the lines %defined by 't' versus 'm' grid on %adds main grid lines to the current axes xlabel ('time') %labels the x-axis of the current axes ylabel ('magnitude') %labels the y-axis of the current axes title ('plot of unit step function of user defined duration' )%adds title to the current axes guidata(hObject, handles); %updates the handles

% --- Executes on button press in Impulse_pushbutton. function Impulse_pushbutton_Callback(hObject, eventdata, handles ) % hObject handle to Impulse_pushbutton (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) start_time = get(handles.start_editText,'String'); step_time = get(handles.step_editText,'String'); stop_time = get(handles.stop_editText,'String'); axes(handles.axes1) t = [ 0 start_time step_time step_time step_time stop_time ] m = [ 0 0 0 1 0 0 ] plot ( t,m ) grid on xlabel ('time') ylabel ('magnitude') title ('plot of unit impulse function of user defined duration' ) guidata(hObject, handles); %updates the handles

% --- Executes on button press in Sine_pushbutton. function Sine_pushbutton_Callback(hObject, eventdata, handles ) % hObject handle to Sine_pushbutton (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) start_time = get(handles.start_editText,'String'); fundamental_frequency = get(handles.frequency_editText,'String'); stop_time = get(handles.stop_editText,'String'); axes(handles.axes1)

%defining the x-axis %defining the y-axis %plots the graph of %adds main grid to t %labels the x axis %labels the y axis %adds title to curre



time = start_time:0.01:stop_time; x = sin(time*fundamental_frequency*2*pi)

%defines the time base funct %generates a sine wave with %time base function 'time' a

plot(time,x), grid on

%plots the graph of all the lines %defined by time versus sin( %and adds main grid lines to xlabel ('Time') %labels the x axis ylabel ('Frequency') %labels the y axis title ('plot of sine wave of user defined frequency and duration' ) %adds a title to the graph guidata(hObject, handles); %updates the handles

% --- Executes on button press in Sawtooth_pushbutton. function Sawtooth_pushbutton_Callback(hObject, eventdata, handles ) % hObject handle to Sawtooth_pushbutton (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) start_time = get(handles.start_editText,'String'); fundamental_frequency = get(handles.frequency_editText,'String'); stop_time = get(handles.stop_editText,'String'); axes(handles.axes1) time = start_time:0.01:stop_time; x = sawtooth(time*fundamental_frequency*2*pi, width)

%defines the time base f %generates a sawtooth wa %time,frequency and widt

plot(time,(x)), grid on

%plots the graph of all %defined by time versus %and adds main grid line xlabel ('Time') %labels the x axis ylabel ('Frequency') %labels the y axis title ('plot of square wave of unit magnitude over user defined period' )%adds a title to the gra guidata(hObject, handles); %updates the handles

187. on 03 Dec 2009 at 9:05 am 187 shiv hello sir can u tell me how can i do this on the single Gui i want 2 image along with 2 buttons after clicking the button the image should be open in small part of GUI 188. on 03 Dec 2009 at 9:07 am 188shiv Sir i want to extract the RGB value of the part of the image selected by user but the gui contains many button and this image on single GUI(frame) 189. on 04 Dec 2009 at 7:56 am 189kiran grewal thanks for the great help……… 190. on 06 Dec 2009 at 8:57 pm 190uDjo thx for the tutorial 191. on 08 Dec 2009 at 8:49 am 191S.M Negranol Having some serious trouble with this one - even using the source code directly invokes the same error: ??? Error while evaluating uicontrol Callback ??? Attempt to reference field of non-structure array.



Error in ==> myAdder>add_pushbutton_Callback at 134 a = get(handles.input1_editText,’String’); Error in ==> gui_mainfcn at 96 feval(varargin{:}); Error in ==> myAdder at 42 gui_mainfcn(gui_State, varargin{:}); ??? Error while evaluating uicontrol Callback Neither this, nor another program I got working based off this that worked elsewhere, will run properly on the version of MATLAB I’m using (7.5.0) - Any help would be VASTLY appreciated. 192. on 08 Dec 2009 at 12:56 pm 192Zane Montgomery Hi S.M Negranol, I’m gonna guess your issue is with the tag of you editText button. Double click your first editText button in the GUIDE editor to bring up the property inspector. Make sure the Tag property has the name: ‘input1_editText’ You may need to check/fix your other buttons t oo, but make sure the tag property for all of your buttons match up with the get(handles.buttonName) commands you’re using. good luck, Zane 193. on 12 Dec 2009 at 10:16 am 193Archana helo sir.. am a newbie to matlab.. yesterday, i tried your tutorial step by step.. but, i got an error.. ??? There is no ‘String’ property in the ‘figure’ class. Error in ==> firstprogram>add_Callback at 148 set(handles.output,’String’,c); Error in ==> gui_mainfcn at 75 feval(varargin{:}); Error in ==> firstprogram at 44 gui_mainfcn(gui_State, varargin{:}); ??? Error while evaluating uicontrol Callback. can you help me sir?? pls.. 194. on 13 Dec 2009 at 12:21 pm 194midodo

‫ستخدام‬‫ة ب‬‫س‬‫ة ح‬‫ل ا‬‫كن اع‬ ‫ ازاى‬matlab GUI 195. on 14 Dec 2009 at 7:46 am 195STB how can we edit a GUI ? if it save as .fig 196. on 17 Dec 2009 at 9:53 am 196 king



help me please badly needed… how can i display the answer of my transfer funct ion to my static text…… function varargout = expt4(varargin) % EXPT4 M-file for expt4.fig % EXPT4, by itself, creates a new EXPT4 or raises the existing % singleton*. % % H = EXPT4 returns the handle to a new EXPT4 or the handle to % the existing singleton*. % % EXPT4(’CALLBACK’,hObject,eventData,handles,…) calls the local % function named CALLBACK in EXP T4.M with the given input arguments. % % EXPT4(’Property’,'Value’,…) creates a new EXPT4 or raises the % existing singleton*. Starting from the left, prope rty value pairs are % applied to the GUI before expt4_OpeningFcn gets called. An % unrecognized property name or invalid value makes property application % stop. All inputs are passed to expt4_OpeningFcn via varargin. % % *See GUI Options on GUIDE’s Tools menu. Choose “GUI allows only one % instance to run (singleton)”. % % See also: GUIDE, GUIDATA, GUIHANDLES % Edit the above text to modify the response to help expt4 % Last Modified by GUIDE v2.5 17-Dec-2009 23:31:08 % Begin initialization code - DO NOT EDIT gui_Singleton = 1; gui_State = struct(’gui_Name’, mfilename, … ‘gui_Singleton’, gui_Singleton, … ‘gui_OpeningFcn’, @expt4_OpeningFcn, … ‘gui_OutputFcn’, @expt4_OutputFcn, … ‘gui_LayoutFcn’, [] , … ‘gui_Callback’, []); if nargin && ischar(varargin{1}) gui_State.gui_Callback = str2func(varargin{1}); end if nargout [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:}); else gui_mainfcn(gui_State, varargin{:}); end % End initialization code - DO NOT EDIT % — Executes just before expt4 is made visible. function expt4_OpeningFcn(hObject, eventdata, handles, varargin) % This function has no output args, see OutputFcn. % hObject handle to figure % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % varargin command line arguments to expt4 (see VARARGIN) % Choose default command line output for expt4 handles.output = hObject; % Update handles structure



guidata(hObject, handles); % UIWAIT makes expt4 wait for user response (see UIRESUME) % uiwait(handles.figure1); % — Outputs from this function are returned to the command line. function varargout = expt4_OutputFcn(hObject, eventdata, handles) % varargout cell array for returning output args (see VARARGOUT); % hObject handle to figure % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % Get default command line output from handles structure varargout{1} = handles.output; function num_Callback(hObject, eventdata, handles) % hObject handle to num (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % Hints: get(hObject,’String’) returns contents of num as text % str2double(get(hObject,’String’)) returns contents of num as a double % — Executes during object creation, afte r setting all properties. function num_CreateFcn(hObject, eventdata, ha ndles) % hObject handle to num (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - handles not create d until after all CreateFcns called % Hint: edit controls usually have a white background on Windows. % See ISPC and COMPUTER. if ispc && isequal(get(hObject,’BackgroundColor’), get(0,’defaultUicontrolBackgroundColor’)) set(hObject,’BackgroundColor’,'white’); end function den_Callback(hObject, eventdata, handles) % hObject handle to den (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % Hints: get(hObject,’String’) returns contents of den as text % str2double(get(hObject,’String’)) returns contents of den as a double % — Executes during object creation, afte r setting all properties. function den_CreateFcn(hObject, eventdata, handles) % hObject handle to den (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - handles not create d until after all CreateFcns called % Hint: edit controls usually have a white background on Windows. % See ISPC and COMPUTER. if ispc && isequal(get(hObject,’BackgroundColor’), get(0,’defaultUicontrolBackgroundColor’)) set(hObject,’BackgroundColor’,'white’); end % — Executes on button press in pushbutton1. function pushbutton1_Callback(hObject, eventdata, handles) % hObject handle to pushbutton1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)



guidata(hobject,handles) a=str2num(get(handles.num,’String’)); b=str2num(get(handles.den,’String’)); sys=(tf(a,b)) set(handles.text3,’String’,sys) % — Executes during object creation, afte r setting all properties. function text3_CreateFcn(hObject, eventdata, handles) % hObject handle to text3 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - handles not create d until after all CreateFcns called 197. on 18 Dec 2009 at 2:10 pm 197 Kusse Thanks som much. I run my first GUI today. 198. on 18 Dec 2009 at 2:11 pm 198Kusse Thank you so much. I run my first GUI today. 199. on 19 Dec 2009 at 9:21 pm 199Engineer M Saeed Anwer Gr8 very helpful for the beginners 200. on 14 Jan 2010 at 6:04 am 200Sheh Fantastic tutorial! 201. on 17 Jan 2010 at 1:04 am 201abhishek sir currently i am trying to develop a graph manipulating application using matlab ,can you help me regarding this project . please and thanks 202. on 19 Jan 2010 at 7:53 am 202kanokwat function varargout = demo1(varargin) % DEMO1 M-file for demo1.fig % DEMO1, by itself, creates a new DEMO1 or raises the existing % singleton*. % % H = DEMO1 returns the handle to a new DEMO1 or the handle to % the existing singleton*. % % DEMO1('CALLBACK',hObject,eventData,handles,...) calls the local % function named CALLBACK in DEMO1.M with the given input arguments. % % DEMO1('Property','Value',...) creates a new DEMO1 or raises the % existing singleton*. Starting from the left, property value pairs are % applied to the GUI before demo1_OpeningFcn gets called. An % unrecognized property name or invalid value makes property application % stop. All inputs are passed to demo1_OpeningFcn via varargin. % % *See GUI Options on GUIDE's Tools menu. Choose "GUI allows only one % instance to run (singleton)". % % See also: GUIDE, GUIDATA, GUIHANDLES % Edit the above text to modify the response to help demo1 % Last Modified by GUIDE v2.5 19-Jan-2010 11:11:47 % Begin initialization code - DO NOT EDIT gui_Singleton = 1;



gui_State = struct('gui_Name', mfilename, ... 'gui_Singleton', gui_Singleton, ... 'gui_OpeningFcn', @demo1_OpeningFcn, ... 'gui_OutputFcn', @demo1_OutputFcn, ... 'gui_LayoutFcn', [] , ... 'gui_Callback', []); if nargin && ischar(varargin{1}) gui_State.gui_Callback = str2func (varargin{1}); end if nargout [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:}); else gui_mainfcn(gui_State, varargin{:}); end % End initialization code - DO NOT EDIT

% --- Executes just before demo1 is made visible. function demo1_OpeningFcn(hObject, eventdata, handles, varargin) % This function has no output args, see OutputFcn. % hObject handle to figure % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % varargin command line arguments to demo1 (see VARARGIN) % Choose default command line output for demo1 handles.output = hObject; set(hObject,'toolbar','figure'); % Update handles structure guidata(hObject, handles); % UIWAIT makes demo1 wait for user response (see UIRESUME) % uiwait(handles.figure1);

% --- Outputs from this function are returned to the command line. function varargout = demo1_OutputFcn(hObject, eventdata, handles ) % varargout cell array for returning output args (see VARARGOUT); % hObject handle to % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % Get default command line output from handles structure varargout{1} = handles.output;

% --- Executes on button press in pushbutton1. function pushbutton1_Callback(hObject, eventdata, handles ) % hObject handle to pushbutton1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) %axes(handles.axes1) t=0:0.001:0.1 a=get(handles.edit1,'string') x=str2num(a) y=sin(2*pi*50*x) plot(handles.axes1,t,y) guidata(hObject,handles);

function edit1_Callback(hObject, eventdata, handles ) % hObject handle to edit1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % Hints: get(hObject,'String') returns contents of edit1 as text % str2double(get(hObject,'String')) returns contents of edit1 as a double % --- Executes during object creation, after setting all properties. function edit1_CreateFcn(hObject, eventdata, handles )



% hObject handle to edit1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - handles not created until after all CreateFcns called % Hint: edit controls usually have a white background on Windows. % See ISPC and COMPUTER. if ispc && isequal (get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColo set(hObject,'BackgroundColor','white'); end

If my input is sin(2*pi*50*t) but program can’t read t t=time what should i do ? 203. on 21 Jan 2010 at 5:32 pm 203Yunus Thank you for such a clear tutorial. It really helps. 204. on 03 Feb 2010 at 7:33 pm 204shill123 Hello.. M designing DTMF encoder/decoder in matlab using GUI.. here i want a figure to be displayed by checking a push button pre ss in someother callback function,, how to do it?? 205. on 04 Feb 2010 at 1:32 am 205Anshul Thank you very much for such great tutorial. 206. on 05 Feb 2010 at 1:05 am 206 amit hansani hello, my final year project is based on image segmentation using fuzzy connectedness…can u plz guide me through this….how can i include a image in matlab using GUI… 207. on 10 Feb 2010 at 12:10 pm 207 Kerem Hi, Thanks a lot for such a nice and simple to understand GUI tutorial 208. on 13 Feb 2010 at 6:28 pm 208lakshman simply great tutorial…very lucid and easy to understand…..thanks a lot 209. on 15 Feb 2010 at 4:49 pm 209AkilaMike Thanx Quan…. This was really helpful. I am personally in need to develop a GUI to be able to load an image and select coordinates on it as well as to clear those selection by using a push button. I would be grateful if you have any resources which can help me in this. Thank you! Mike. 210. on 15 Feb 2010 at 11:21 pm 210Iris Thanks for your tutorial! It’s very he lpful and I finally laid out a GUI with buttons that work. However, I was trying to make an adjustable horizontal line in a GUI plot. Is it possible? Any resources that I can look



into? Thanks, Iris 211. on 17 Feb 2010 at 6:35 am 211hidayah how do i write the command if i need to instruct the user to insert values of an equation? i have an assignment which need the input from the user but i don’t know how t o begin….the values are needed to be inserted into matrix and further algorithms will be carried out using the values inserted by the user….how do i do this? 212. on 21 Feb 2010 at 10:52 pm 212maddy i am getting problem in doing this problem MATLAB CODE function varargout = myadder(varargin) % MYADDER M-file for myadder.fig % MYADDER, by itself, creates a new MYADDER or raises the existing % singleton*. % % H = MYADDER returns the handle to a new MYADDER or the handle to % the existing singleton*. % % MYADDER(’CALLBACK’,hObject,eventData,handles,…) calls the local % function named CALLBACK in MYADDER.M with the given input arguments. % % MYADDER(’Property’,'Value’,…) creates a new MYADDER or raises the % existing singleton*. Starting from the left, prope rty value pairs are % applied to the GUI before myadder_OpeningFcn gets called. An % unrecognized property name or invalid value makes property application % stop. All inputs are passed to myadder_OpeningFcn via varargin. % % *See GUI Options on GUIDE’s Tools menu. Choose “GUI allows only one % instance to run (singleton)”. % % See also: GUIDE, GUIDATA, GUIHANDLES % Edit the above text to modify the response to help myadder % Last Modified by GUIDE v2.5 22-Feb-2010 12:22:58 % Begin initialization code - DO NOT EDIT gui_Singleton = 1; gui_State = struct(’gui_Name’, mfilename, … ‘gui_Singleton’, gui_Singleton, … ‘gui_OpeningFcn’, @myadder_OpeningFcn, … ‘gui_OutputFcn’, @myadder_OutputFcn, … ‘gui_LayoutFcn’, [] , … ‘gui_Callback’, []); if nargin && ischar(varargin{1}) gui_State.gui_Callback = str2func(varargin{1}); end if nargout [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:}); else gui_mainfcn(gui_State, varargin{:}); end % End initialization code - DO NOT EDIT



% — Executes Exe cutes just before myadder is made visible. visible. function myadder_OpeningFcn(hObject, myadder_OpeningFcn(hObject, eventda ta, handles, varargin) % This function has no output args, see OutputFcn. % hObject handle to figure figure % eventdata reserved - to be defined in a future version of MATLAB MATLAB % handles structure with handles and user data (see GUIDATA) % varargin command line arguments to myadder (see VARARGIN) % Choose default defa ult command line line output for myadder handles.output = hObject; % Update handles structure guidata(hObject, guidata(hObject, handles); % UIWAIT makes myadder wait for user response (see UIRESUME) % uiwait(handles.fig uiwait(handles.figure1); ure1); % — Outputs from this function are returned to the command line. function varargout = myadder_OutputFcn(hObject, eventdata, handles) % varargout cell array for returning output args (see VARARGOUT); % hObject handle to figure figure % eventdata reserved - to be defined in a future version of MATLAB MATLAB % handles structure with handles and user data (see GUIDATA) % Get default command line line output from handles structure varargout{1} = handles.output; function input1_editText_Callback(hObj input1_editText_Callback(hObject, ect, eventdata, handles) % hObject handle ha ndle to input1_editText input1_editText (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB MATLAB % handles structure with handles and user data (see GUIDATA) % Hints: get(hObject,’String’) get(hObject,’String’) returns contents of input1_editText input1_editText as text % str2double(get(hObject,’String’)) str2double(get(hObject,’String’)) returns conte nts of input1_editText input1_editText as a double %store the contents of input1_editText input1_editText as a string. if the string %is not a number t hen input will be empty input = str2num(get(hObject,’Stri str2num(get(hObject,’String’)); ng’)); %checks to see if input is empty. if so, default input1_editText input1_editText to zero if (isempty(input)) set(hObject,’String’,'0′) end guidata(hObject, guidata(hObject, handles); % — Executes Exe cutes during object creation, afte r setting all properties. function input1_editText_CreateFcn(hObject, input1_editText_CreateFcn(hObject, eventdata, handles) % hObject handle ha ndle to input1_editText input1_editText (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB MATLAB % handles empty - handles not create d until after all CreateFcns called % Hint: edit controls usually have a white background on Windows. % See ISPC and COMPUTER. if ispc && isequal(get(hObject,’BackgroundCol isequal(get(hObject,’BackgroundColor’), or’), get(0,’defaultUicontrolBackg get(0,’defaultUicontrolBackgroundColor’)) roundColor’)) set(hObject,’BackgroundColor’,'white’); end function input2_editText_Callback(hObj input2_editText_Callback(hObject, ect, eventdata, handles) % hObject handle ha ndle to input2_editText input2_editText (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB MATLAB % handles structure with handles and user data (see GUIDATA)



% Hints: get(hObject,’String’) get(hObject,’String’) returns contents of input2_editText input2_editText as text % str2double(get(hObject,’String’)) str2double(get(hObject,’String’)) returns conte nts of input2_editText input2_editText as a double %store the contents of input1_editText input1_editText as a string. if the string %is not a number t hen input will be empty input = str2num(get(hObject,’Stri str2num(get(hObject,’String’)); ng’)); %checks to see if input is empty. if so, default input1_editText input1_editText to zero if (isempty(input)) set(hObject,’String’,'0′) end guidata(hObject, guidata(hObject, handles); % — Executes Exe cutes during object creation, afte r setting all properties. function input2_editText_CreateFcn(hObject, input2_editText_CreateFcn(hObject, eventdata, handles) % hObject handle ha ndle to input2_editText input2_editText (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB MATLAB % handles empty - handles not create d until after all CreateFcns called % Hint: edit controls usually have a white background on Windows. % See ISPC and COMPUTER. if ispc && isequal(get(hObject,’BackgroundCol isequal(get(hObject,’BackgroundColor’), or’), get(0,’defaultUicontrolBackg get(0,’defaultUicontrolBackgroundColor’)) roundColor’)) set(hObject,’BackgroundColor’,'white’); end % — Executes on button press in add_pushbutton. function add_pushbutton_Callback(hObject, add_pushbutton_Callback(hObject, eventdata, event data, handles) % hObject handle to add_pushbutton (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB MATLAB % handles structure with handles and user data (see GUIDATA) a = get(handles.input1_editText,’String’); b = get(handles.input2_editText,’String’); % a and b are variables of Strings Strings type, and need to be converted % to variables of Number type before they can be added together total = str2num(a) + str2num(b); c = num2str(total); % need to convert the answer back into String type to display display it set(handles.answer_staticText,’String set(handles.answer_staticT ext,’String’,c); ’,c); guidata(hObject, guidata(hObject, handles); 213. on 26 Feb 2010 at 7:13 am 213Debasish Sarker Plz..help me..and if possible email me to my email address. I want to modify a gui.m file..my file..my problem is..I is..I have 3 m files files of 3 equations. in these equations equat ions there are 2 unknown variables. from gui.fig gui.fig i want want to input the se 2 unknown values by edit text and select an e quation by pop-menu and get the result. How can I manage gui.m file of this problem?? anyone please help me.. 214. on 04 Mar 2010 at 11:15 pm 214Ritu Hi, I m really Thankfull 2 u for this nice and easily understandable tutorial. 215. on 05 Mar 2010 at 3:05 am 215Alen Hi, can you teach me how to generate sine wave in GUI?



Thank you 216. on 07 Mar 2010 at 1:45 am 216 Anonymous Anonymous supper 217. on 08 Mar 2010 at 9:59 am 217 elea elea thank you so much for the tutorial 218. on 13 Mar 2010 at 7:58 am 218dut eden hey i have one Q how to get read for a matrix form..eg: form..eg: i want to read 2000 4000 in static text both at the same time.. 219. on 13 Mar 2010 at 6:50 pm 219raj hey can u help me i have a program in which i am reading no of frames using ‘mmreader’ and then after aft er reading all frames frames reading one particular frame as original and on converted t o bW now i want to insert my prog to GUI but i dont know where excatlly i need to insert my matlab code in GUI (bcoz this is first time i am working with GUI) as i want to load the image and then enter to no of frame i want to read and save it plzz help me out 220. on 13 Mar 2010 at 6:53 pm 220raj hey can u help me i have a program in which i am reading no of frames using ‘mmreader’ and then after aft er reading all frames frames reading one particular frame and convert it to bW now i want to insert my prog to GUI but i dont know where excatlly i need to insert my matlab code in GUI (bcoz this is first time i am working with GUI) as i want to load the video and then enter to no of frame i want to read and save it plzz help me 221. on 14 Mar 2010 at 7:47 am 221nandit I had a one problem. I just want to design a calculator same as TI-89 by using a MATLAB, but I didn’t know from where should I look the information. information. Somebody told you shall have to look at tutorial, but I didn’t get not hing over there. May be I am thinking that you can ca n help me from figue figue out where the information I can find? 222. on 14 Mar 2010 at 7:49 am 222nandit 223. on 19 Mar 2010 at 12:11 12:11 pm 223saifi i m beggner please help me to learn GUI 224. on 19 Mar 2010 at 2:59 pm 224glasnost Well Done! I Like it! 225. on 19 Mar 2010 at 5:21 pm 225Hiba Hello dears I have an assignment assignment to load an image to the Matlab GUI and 4 letters around it (a lette r at each eac h side of the image). Then in case a pushbotton is pressed, numbers are changed in random fashion. I wish to hear a clue in this with fully



appreciation. hiba 226. on 30 Mar 2010 at 2:43 am 226 ANIL KUMAR hello, i need your help in my project ,actually i need a matlab program to simulate optical waveguide parameters. 227. on 01 Apr 2010 at 1:08 pm 227 thanks i really love you ….. 228. on 09 Apr 2010 at 11:36 pm 228theepak thanks …very very usefull material simpler to understand… gret job sir.. 229. on 10 Apr 2010 at 10:15 pm 229Mido_Ban hahahaha… wow, About 2 years ago I came to this site to learn how t o use listchecker for dota… Now in college I needed to find some Matlab help and HERE I Come to the same website. Thanks blinkdagger, although in game one of my clan member actually has tha t name >_> and i doubt thats you because he’s like a senior in high school lulz. 230. on 11 Apr 2010 at 2:17 am 230Priyankar sir, i facing a trouble by modifying your source code to use it for finding the z transform of a function that i enter into the edit box ….can you please help me in this regards….. here the source code that i made for it ..if u can identify the problem… function varargout = ztrans(varargin) % ZTRANS M-file for ztrans.fig % ZTRANS, by itself, creates a new ZTRANS or raises the existing % singleton*. % % H = ZTRANS returns the handle to a new ZTRANS or the handle to % the existing singleton*. % % ZTRANS(’CALLBACK’,hObject,eventData,handles,…) calls the local % function named CALLBACK in ZTRANS.M with the given input arguments. % % ZTRANS(’Property’,'Value’,…) creates a new ZTRANS or raises the % existing singleton*. Starting from the left, property value pairs are % applied to the GUI before ztrans_OpeningFcn gets called. An % unrecognized property name or invalid value makes property application % stop. All inputs are passed to ztrans_OpeningFcn via varargin. % % *See GUI Options on GUIDE’s Tools menu. Choose “GUI allows only one % instance to run (singleton)”. % % See also: GUIDE, GUIDATA, GUIHANDLES % Edit the above text to modify the response to help ztrans % Last Modified by GUIDE v2.5 11-Apr-2010 14:55:40 % Begin initialization code - DO NOT EDIT gui_Singleton = 1; gui_State = struct(’gui_Name’, mfilename, … ‘gui_Singleton’, gui_Singleton, … ‘gui_OpeningFcn’, @ztrans_OpeningFcn, … ‘gui_OutputFcn’, @ztrans_OutputFcn, … ‘gui_LayoutFcn’, [] , …



‘gui_Callback’, []); if nargin && ischar(varargin{1}) gui_State.gui_Callback = str2func (varargin{1}); end if nargout [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:}); else gui_mainfcn(gui_State, varargin{:}); end % End initialization code - DO NOT EDIT % — Executes just before ztrans is made visible. function ztrans_OpeningFcn(hObject, eventdata, handles, varargin) % This function has no output args, see OutputFcn. % hObject handle to figure % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % varargin command line arguments to ztrans (see VARARGIN) % Choose default command line output for ztrans handles.output = hObject; % Update handles structure guidata(hObject, handles); % UIWAIT makes ztrans wait for user response (see UIRESUME) % uiwait(handles.figure1); % — Outputs from this function are returned to the command line. function varargout = ztrans_OutputFcn(hObject, eventdata, handles ) % varargout cell array for returning output args (see VARARGOUT); % hObject handle to figure % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % Get default command line output from handles structure varargout{1} = handles.output; function input1_editText_Callback(hObject, eventdata, handles ) %store the contents of input1_editText as a string. if the string %is not a number then input will be empty input = str2func(get(hObject,’String’)); %checks to see if input is empty. if so, default input1_editText to zero if (isempty(input)) set(hObject,’String’,'0 ) end guidata(hObject, handles); % hObject handle to input1_editText (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) ′

% Hints: get(hObject,’String’) returns contents of input1_editText as text % str2double(get(hObject,’String’)) returns contents of input1_editText as a double % — Executes during object creation, after setting all properties. function input1_editText_CreateFcn(hObject, eventdata, handles ) % hObject handle to input1_editText (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - handles not created until after all CreateFcns called % Hint: edit controls usually have a white background on Windows. % See ISPC and COMPUTER. if ispc && isequal (get(hObject,’BackgroundColor’), get(0,’defaultUicontrolBackgroundColo set(hObject,’BackgroundColor’,'white’ ); end % — Executes on button press in ztrans_pushbutton. function ztrans_pushbutton_Callback(hObject, eventdata, handles ) syms n a = get(handles.input1_editText,’String’ ); % a and b are variables of Strings type, and need to be converted % to variables of Number type before they can be added together



total = ztrans(a); c = func2str(total); % need to convert the answer back into String type to display it set(handles.answer_staticText,’String’,c ); guidata(hObject, handles); % hObject handle to ztrans_pushbutton (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)

231. on 12 Apr 2010 at 5:59 pm 231ravi xcellent beginner tutorial….thanks for the share 232. on 13 Apr 2010 at 6:55 am 232Pramod Thanks a lot! was really clear and helpful 233. on 15 Apr 2010 at 1:12 am 233jay Excellent tutorial for beginners. thankyou. 234. on 21 Apr 2010 at 4:52 am 234Pramod Is it possible to edit the GUI once it has been closed? How? Thanks in advance! 235. on 21 Apr 2010 at 9:13 am 235Zane Montgomery Pramod, Click ‘Guide’ again and select the tab ‘Open Existing GUI’ 236. on 21 Apr 2010 at 12:20 pm 236 Pramod Thanks Zane! 237. on 22 Apr 2010 at 9:33 am 237 xaim Sir, i want to make a GUI for my project to make a preview of webcam and take a snapshot from the video coming.The problem that i am facing is that the preview is not clear and the remaining functions are also not working properly.Kindly help me in this regard. Xaim. 238. on 22 Apr 2010 at 11:09 pm 238anum nic demo 239. on 28 Apr 2010 at 9:09 am 239Anonymous thnx man! 240. on 30 Apr 2010 at 5:09 am 240A Rasmy thanks alot man! u really helped me in my grad. project 241. on 01 May 2010 at 5:08 am 241PARI hey. plz reply fast.



how can i use assignin and evalin in matlab gui????????? 242. on 02 May 2010 at 7:30 am 242Pramod What is the actual datatype to which the entered number is converted in str2num function? 243. on 03 May 2010 at 2:21 pm 243Zane Montgomery Pramod, str2num takes a ’string’ and converts it to a ‘double’ (usually) 244. on 04 May 2010 at 9:08 am 244rahul thanx 4 this tutorial.. i wpuld like to generate a gui for a neuarl network trained by me and now to simulate the sresults i would like to generate gui. we have to provide 5 inputs by user and 3 out put will be given. how can we give out put of a row matrix into three different cells which we want to provide… pls help thanx in advance 245. on 10 May 2010 at 12:02 pm 245Prabhjot Hello Quan, I appreciate your efforts. 246. on 13 May 2010 at 5:15 am 246 mahdi dear sir since i use matlab version 5.3.1, would you please create relevant GUI tutorial, because I think above mentioned tutoraial is in latest version thank you indeed 247. on 27 May 2010 at 4:46 am 247 Rodrigo Hello! First of all, I want to say that I really liked your tutorial; it helped me a lot. But I want to ask something: how can I set a String of a Static Text with a value that comes from the USB entry? My problem is to make a GUI to display 4 values (numbers) that comes from the USB into 4 Statics Text (and it needs to refresh itself). Could you help me? Thank you! 248. on 30 May 2010 at 12:07 am 248Ashok Beautiful 249. on 31 May 2010 at 5:27 am 249vinit mittal i need a gui for solving ode. if anyone can help me with it, it will be greated appreciated. or if its already available then , can sumone give me a link to it. thanking all in advance 250. on 31 May 2010 at 11:58 pm 250Rana Awais iqbal Sir plz help me. our project are gui calculator by different program for example bisectin, newton, fixed point, matrix multiplication etc Sir please help me



251. on 01 Jun 2010 at 11:27 am 251Rana Awais iqbal Sir plz help me. our project are gui calculator by different program for example bisectin, newton, fixed point, matrix multiplication etc we submitted our project 3june 2010. kindly help us 252. on 01 Jun 2010 at 9:35 pm 252kureti Hello sir, Nice basic example. Thank a lot for sharing with nice step by step procedure 253. on 02 Jun 2010 at 3:05 am 253leswiss Been looking for such a good tuto for hours !!!! THANK YOU !! 254. on 02 Jun 2010 at 7:38 am 254miteran Nice one! 255. on 09 Jun 2010 at 3:15 am 255Stebbi great tutorial thx 256. on 10 Jun 2010 at 1:02 am 256 links for 2010-06-10 « lugar do conhecimento [...] MATLAB GUI Tutorial – For Beginners | blinkdagger (tags: work, matlab) Deixe um Comentário [...] 257. on 11 Jun 2010 at 10:58 pm 257 Krishna Thanks a lot !!! I was jumping when I run first GUI 258. on 15 Jun 2010 at 8:18 pm 258subrahmanya Its nice explanation dear Thank you 259. on 24 Jun 2010 at 9:21 am 259Saad welldone and thanks for sharing such a nice thing 260. on 29 Jun 2010 at 8:40 am 260Anonymous It’s very clear.Thank your! 261. on 05 Jul 2010 at 3:43 am 261Noman Siddiqui i have to make GUI for my webcam. GUI that recalls my image from C drive. can anyone please give me the coding reply please on [email protected] 262. on 06 Jul 2010 at 12:45 am 262mithchie where is the source file? 263. on 10 Jul 2010 at 9:55 am 263yunusemre Hi, i get the following error When i run my function. PLEASE HELP ME! i will be grateful. >> TestAutoCovarianceCPInt



??? Reference to non-existent field ‘nobs’. Error in ==> dataset.isempty at 11 t = (a.nobs == 0) || (a.nvars == 0); Error in ==> roc at 20 if nargin == 0 | isempty(A) Error in ==> TestAutoCovarianceCPInt at 115 e=roc(dataset(SCORE{1}’,yTE’),50); 264. on 13 Jul 2010 at 12:12 am 264shehab nice and clear 265. on 19 Jul 2010 at 10:31 pm 265samin hi; i have a question! how can i open another fig file and run it when i use callback of a pushbutton?when i use winopen(’another file!’),it just open the form and doesnt run this!what should i do?help me. please send me an e-mail as soon as possible. my e-mail:[email protected] 266. on 24 Jul 2010 at 9:37 am 266 shonali Hey, Im a Matlab beginner.As i type guide in the command window,i get the following error. ??? Error using ==> copyfile ‘attrib’ is not recognized as an internal or external command, operable program or batch file. Error in ==> guidetemplate at 88 copyfile(srcfigfile, targetfigfile, ‘writable’); Error in ==> guide at 61 filename = guidetemplate; It would be great if you could help me resolve that. Thanks. 267. on 04 Aug 2010 at 10:09 am 267 Eng_Bandar very good. we need some tutorial in how connect webcam by matlab gui. 268. on 16 Aug 2010 at 11:11 pm 268Anay brilliant !! but i have a small doubt… i tried the code total=str2num(a) + str2num(b) and i forgot to convert ‘total’ back to string type. but still, the program worked ! why?? 269. on 18 Aug 2010 at 1:10 pm 269helmy hello sir…im a matlab beginner and just doing my final project about comparing fingerprint algorithm using matlab gui.



i wanna ask how to put these algorithm in matlab gui? hopefully you can help me … thanks 270. on 29 Aug 2010 at 4:21 am 270Dr.Ivanobich Excellent workdone…I really appreciate it. Hope to get more tutorials over here Awesome. 271. on 03 Sep 2010 at 10:21 pm 271C.K.Dhinakarraj Can any one explain me about the linking of ANN file to frontend GUI of matlab 272. on 15 Sep 2010 at 5:21 am 272sreenu hi.thanks a lot for posting this good and simple example gui.thanks a lot. 273. on 30 Sep 2010 at 12:59 pm 273Matlab GUI for Engaged Learning | Freedom University Tutorial Videos [...] Matlab GUI Interface Tutorial For Beginner form Blinkdagger.com. I used this one to create my first GUI. [...] 274. on 08 Oct 2010 at 5:45 am 274ajeet Really good tutorial for MATLAB fresher…..i am waiting for next tutorial sheeet…..thanks sir……. 275. on 09 Oct 2010 at 11:17 am 275Mathew HELP! I’ve got some strange behavior of MATLAB. In button callback function I input: set(handles.estym, 'string', num2str(b));

and if I run my GUI using green “play” button in GUIDE Editor everithing if fine. I see value of ‘b’ in ‘estym’, but if I open my GUI directly from MATLAB command windows I see error: ??? Attempt to reference field of non-structure array. I discovered, if is this error ‘handles’ is empty 276. on 17 Oct 2010 at 1:13 am 276 Amit hi. i m a beginner. i want to link many gui files. How can i do that??? for e.g in the first file, after clicking a button “ NEXT”, i must enter to the next file(page). and so on. thanks.. 277. on 18 Oct 2010 at 6:43 pm 277 ls.narith If I have two push buttons in GUIDE. I just want to write code in the first callback’s button and the second button I want to call it from the first one. How can I do? Thanks. 278. on 19 Oct 2010 at 9:54 am 278Matlab GUI 实现 ADPC ABAQUS 输入文件和两相子程序的生成 « 亘古之基于方法的伤 [...] 为了实现这一目标，我没有采用老哥建议的C#语言，而更加倾向于Matlab。虽然我曾经有过matlab 编程经历，但是Matlab GUI和我还是第一次亲密接触，经过学习发现，Matlab GUI的功能强大，有着所见即所得的开发



环境，内置的GUI handles整体变量可以在一个GUI figure所对应的所有动作应用函数里面方便调用，而且程序调试的时候非常方便，这得益于matlab 编译系统的简洁明白的特性。这里特别要推荐一个学习Matlab GUI非常赞的网站：blinkdagger 。正是通过学习该网站循序渐进的tutorial才让我在三天内顺利地完成了ADPCgeneratro的开发。 [...] 279. on 25 Oct 2010 at 8:36 am 279sinan This is the best tour for GUI I have ever seen. Thanks very very very much. You are really great

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MATLAB GUI (Graphical User Interface) Tutorial for Beginners

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