How to save/load current MATLAB workspace in .mat file from app designer

I am develping a GUI that loads the necessary variables and inputs in MATLAB workspace and then runs a simulink model.

When everything is loaded with the assign function, I would like to save the current workspace with those variables, tables, etc from MATLAB workspace in a .mat file , equivalent to:

%% from MATLAB

save("This_workspace")

%%

So this was my approach:

%% properties (Access = private)

architecture_load

%% function SAVEButtonPushed(app, event)

app.architecture_load=get(app.UITable,'Data');

assignin("base",'architecture_load',app.architecture_load);

name_file = inputdlg("Save as");

if isempty(name_file)

return

else

save(append(name_file,".mat"));

end

end

And to load similarly...However, when this is commanded by the App I have the following error message:

Warning: Unable to save App Designer app object. Save not supported for matlab.apps.AppBase objects.

Because it tries to save the App workspace instead of MATLAB workspace...Any idea about how can I define a .mat file to SAVE / LOAD easily?

Answer 1

[Voss]

To save your MATLAB (i.e., base) workspace to a mat file from within an app:

evalin('base',['save(''' name_file '.mat'');']);

However, you may consider saving just the variables you need from the app workspace, which would avoid the use of assignin and evalin. For instance, you can use whos to get a struct of information about every variable, then remove those variables (e.g., the app object itself) from the struct that you don't want to save, and save the remaining ones.

[Anoy Chowdhury]

Thanks a lot! It did not really work but the idea helped me to find this one:

evalin('base',char(strcat({'save '},name_file)))