MATLAB: How to stop autosave when closing matlab

autosaveclose

Whenever I close matlab it saves the current workspace as matlab.mat. I do not want this, but cannot find a way to turn automatic saving it off. Help?

Best Answer

Are you using a termination file when MATLAB exits? At the link finish, it discusses how when the MATLAB® program quits, it runs a script called finish.m. If you have this file, then it may be that it has a line of code that is automatically saving the workspace to the matlab.mat file.

From this same link, it does mention sample termination files that come with MATLAB. In my Command Window, I typed

 open finishsav.m

and in the MATLAB editor, the following code appeared

 disp(getString(message('MATLAB:finishsav:SavingWorkspaceData')));
 save

The above doesn't run, but if the same code exists in the finish.m script then it is these two lines that you will want to comment out.

In your command window, type

 which finish

and observe the results. If you see

 'finish' not found.

then this script is not defined and it is unclear (to me!) how the workspace data is automatically being saved. However, if you observe the path to this file, then just open it in the editor

 open finish

and observe the contents. Comment out any code that you don't wish to run on termination of MATLAB.

Hope that this helps!

Related Solutions

MATLAB: CloseRequestFcn for Matlabs main window

Never mind. I found the solution. If there is a file called finish.m it the searchpath or in the current folder, matlab executes it when its closed.

MATLAB: Is it possible to set the startup directory to be the directory I was in when I ended the previous session of MATLAB

The ability to preserve the directory between sessions is not available in MATLAB.

To work around this issue, you may use finish.m to have MATLAB use the last directory and use that upon starting a new session. The finish.m file would store the pathname of the last directory into your user path.

The finish.m file would include the lines:

p = pwd;
userpath(p);
savepath;

Note that the command FINISH automatically executes before leaving MATLAB if the file finish.m exists on the path. More information on this functionality can be found in the documentation by typing

doc finish

Alternatively, it is possible to use startup.m and finish.m files in order to have MATLAB remember the last directory and use that upon starting a new session. The finish.m file would store the pathname of the last directory into a variable, and the startup.m file would load this variable and use its contents to determine what to change the current directory to.

The startup.m file would include the lines

if (exist([matlabroot filesep 'work' filesep 'last_dir.mat']) == 2) 
      load ([matlabroot filesep 'work' filesep 'last_dir']) 
      cd(last_dir); 
end

whereas the finish.m file would include the lines

last_dir = pwd; 
save([matlabroot filesep 'work' filesep 'last_dir'],'last_dir');

Note that the command STARTUP automatically executes when starting MATLAB if the file startup.m exists, and the command FINISH automatically executes before leaving MATLAB if the file finish.m exists. More information on this functionality can be found in the documentation by typing

doc startup 
doc finish

Best Answer

Related Solutions

MATLAB: CloseRequestFcn for Matlabs main window

MATLAB: Is it possible to set the startup directory to be the directory I was in when I ended the previous session of MATLAB

Related Question