Clear vairables in workspace using gui pushbutton callback??

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Brasco , D.
Brasco , D. on 26 Jan 2015
Commented: Geoff Hayes on 4 Jan 2021
Hi guys,
here is my problem:
i load a mat file that contains several variables before i run my gui. I use these variables with the help of "evalin" command in my gui callbacks.
Let say my workspace variables are these : A cell , B cell , C double,... goes on.
I want to clear all variables in the workspace window using a push button callback.
" I want to clear variables that i loaded before i run my gui".
(i read some answers and there was a conflict about the workspace term. I MEAN THE VARIABLES APPER IN MATLAB WORKSPACE WINDOW, NOT THE GUI WORKSPACE. )
  2 Comments
Geoff Hayes
Geoff Hayes on 4 Jan 2021
Pathmashantha - you may want to elaborate on what you need help with.

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Accepted Answer

Geoff Hayes
Geoff Hayes on 1 Feb 2015
Ozgur - if there are specific variables that you want to clear from the MATLAB (base) workspace, then you could use evalin with clear. If you put the following line in a push button callback, then
evalin('base','clear A B')
would clear the variables A and B that are in your base workspace.
But why are there variables in your base workspace that you need to evaluate in your GUI? Why not pass them as inputs to the GUI upon startup, or load them from a mat file and so avoid all of the evalin calls (which make troubleshooting bugs somewhat difficult).
  1 Comment
Brasco , D.
Brasco , D. on 2 Feb 2015
Thak you for your help. You are right. I read alot about evalin bugs, but i am newbe and dont know much about the gui. Thanks for the advise. I will try to do things as you mentioned. I have to read helps about gui and the passing variables as inputs to gui.. thing. Thank you again.

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More Answers (1)

HAMZA ABBASI
HAMZA ABBASI on 24 Jun 2018
clear object name like (clear a) will not work.... write clear all statement in the first line of code

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