How to save all variables in the matlab base workspace by a button in App？

Hello, I use "assignin" to write the variable created in App designer to the workspace, but I also manually type the code or formula in the command window to calculate, and thus create more variables.

I want to save all these variables in the workspace. I can use "save('C:\test.mat')" in the command window with no problem. I also have a save button in the app, which is supposed to do the same thing (save all variables in the matlab workspace).

With save('C:\test.mat') by the button, app designer will save all variables in both matlab workspace and the app desinger workspace, and then get a warning that Unable to save App Designer app object. Save not supported for matlab.apps.AppBase objects.

My question is how to save all these variables only in the matlab workspace?

Edit: matlab workspace means the base one

Answer 1

[Matt J]

It is not clear what you mean by, "the Matlab workspace". I will assume you mean the base workspace, i.e., the workspace of the command window. In your save button's callback, you would need,

str= "save('C:\test.mat')";
 
evalin('base',str)

[Tianlun Yu]

Hello Matt, thank you for pointing out the correct name. Yes, I meant the base workspace of the command window, and you solved my problem.

[Matt J]

You're welcome, but if it did solve your problem, please Accept-click the answer.