Help: Pass data from seperate .m file to GUI .m file?

Hello everybody,

I have a .m file (named file 1) generated from .fig file and a seperate .m file to calculate (named file 2). There're two values a and b from end user through GUI. These values will be passed to file 2 to calculate a + b. The result will be assigned to res variable in file 2. When user pushes a button in GUi, it will show res variable in the static text field.

Could someone please tell me how to do it?

The code of .m file 1. I also attached files below.

function y=file2(handles)
clc
a=str2num(get(handles.a,'string'));
b=str2num(get(handles.b,'string'));
res=a+b;

%

[Stephen23]

The names of the files and the function names do not match ( file1.m contains function file2 ). The text editor should have highlighted this.

http://www.mathworks.com/help/matlab/matlab_prog/create-functions-in-files.html

[Khanh]

This is the approach by using 3 files. I recently found out on Youtube. The file 1 can retrieve the data from GUI and calculate.

Answer 1

[Stephen23]

Almost there. You used get to retrieve data from the edit fields, now you can use set to assign the value res to the text field.

[Khanh]

Thanks for your reply.

I also tried it. I put the

set(handles.res,'string',num2str(res))

in the file 2.

GUI showed it eventhough I didn't push the button. It wasn't what I want.

[Stephen23]

Yes, the set command needs to happen in the pushbutton's callback function . For this you can easily define your own anonymous function which includes the set command.

The concept is this:

• The button is pressed.
• The button calls its callback function (which you can define).
• Your callback function sets the string value (or does anything else that you want to do).

This is explained in more detail in the docs:

http://www.mathworks.com/help/matlab/creating_guis/write-callbacks-using-the-programmatic-workflow.html