How to access all .m files in different subfolders?

As my project grows, I came up with the idea to arrange the different functions into different folders. For example the solvers are in the "solver" folder, the utility functions in the "utilities" folder, etc. If I invoke my functions, the do not see each other because of being different folders. How can I eliminate this error? I would like to maintain this several-folders structure. Do I have to change the current directory all the time?

Thanks, Zoli

Answer 1

[Star Strider]

As part of my startup.m file, I start by calling the userpath function, then genpath and lastly, addpath. I’m not certain this is the most efficient method, since my startup.m file has evolved over the 15 or so years since MATLAB added the MATLAB directory to Documents, but it works.

Specifically:

MyPath = userpath;
MyDir = MyPath(1:strfind(MyPath,';')-1);
MyWorkDir = genpath(MyDir);
addpath(MyWorkDir, '-end');

EDIT — This works for Windows. No promises for Mac or Linux systems.

[Zoltán Csáti]

Thank you very much, it works on Windows.

[Star Strider]

My pleasure!

Answer 2

[Aldo Amaya]

If you are only calling functions you do not have to change to a current directory. You just need to set the path to include all folders.

Environment>Set Path>Add With Subfolders> (Select work folder)

Then you should be able to call upon any function in your path.

[Aldo Amaya]

Do not forget to save your path. Also if you add additional subfolders just repeat process.

[Zoltán Csáti]

I set the path to the folder containing the subfolders but it still doesn't work. Could you write an example how to do it?

[Aldo Amaya]

After you saved your path, and tried to call the function, what was the error it gave you?

[Zoltán Csáti]

I solved it with your (interactive) method and with Star Strider's startup version. Both of them works. Thank you too.

Zoli

[Aldo Amaya]

Sounds good.

Answer 3

[benjamin rinauto]

It sounds like this file on the file exchange is what you're looking for:

https://www.mathworks.com/matlabcentral/fileexchange/59815-addcontainingdirandsubdir--