How to use a same variable to functions in Gui?

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Daniel Fonsêca
Daniel Fonsêca 2018-10-16
编辑： Stephen23 2018-10-30
I have used the Gui to build the a programm. I would like when the user to click on menu item A, a number is stored in a variable. When the user click on menu item B, another number is stored in the same variable.
I want to use this variable in other function, in a loop. So, I'm trying that. Since now, I thank you for attention.

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Daniel Fonsêca
Daniel Fonsêca 2018-10-23
I got to solve that problem. I used the function "assignin()" to store a variable and its value. To acess that variable, I use "evalin"
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Daniel Fonsêca
Daniel Fonsêca 2018-10-30
Thanks Stephen. But, do you know a way to transfer the datas without use the workspace? And, How I can clear the workspace after I use the programm?
Stephen23
Stephen23 2018-10-30
编辑：Stephen23 2018-10-30
@Daniel Fonsêca: you change your approach to writing GUI's.
A much better approach is to pass the data to a GUI when it is called, process the data entirely within the GUI workspaces, and then return the data when the GUI closes (the waitfor command is critical here). A lot of well written code loads, processes data, and saves all without touching the base workspace at all.
See this for a simple example of passing data into and back from a GUI:
https://www.mathworks.com/matlabcentral/fileexchange/48930-interactive-regular-expression-tool
Clearing a workspace is rarely required in well written code: functions, which have independent workspaces, have their memory usage managed automatically by MATLAB.

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