MATLAB: How to avoid setting of local directory as search path on startup

r2013asearch pathstartup

Hello,

I used to use R2011 and before. I just installed R2013a. Now I have a little problem with my configuration: The directory I start matlab from gets added to the search path (recursively).

This is mad, since I have different projects in subfolders. I have to manually delete all dirs from search path before I can begin to work. This also results in BIG trouble if I start matlab from my home directory. Here a few thounds of dirs get added, whch take quite a bit of time to be first added and then manually (!) deleted.

How can I set up martlab to avoid adding the local dir to the search path?

I have two installations both with the same issue, so I think this is the default for now ?!?

Thank Christian Wolf

Best Answer

I've got it! The problem was that I added sdpt3 to my path. There is a startup.m file that caused the problems. After a small change in that file to disable the change of path not more issue.

Thanks Christian

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You should use setenv() to set the path.

Pay attention that usually you want to add something to the path and not override it. Hence do something like:

PATH_SEP = pathsep();
myDir = '/some/dir/in/my/mac/';
currPath = getenv('PATH');
setenv('PATH', [currPath, PATH_SEP, myDir]);

Of course this is the MATLAB way. You could also just use system command:

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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);
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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) 
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whereas the finish.m file would include the lines

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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

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