Saving my own function to be used as MATLAB built-in functions

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Saeid
Saeid le 26 Avr 2018
Commenté : Saeid le 27 Avr 2018
I would like to write a function that can be called from anywhere regardless of my current working path, just like I use integral(...) or sin(...). How should I change the setup to be able to do this?
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Jan
Jan le 26 Avr 2018
Modifié(e) : Jan le 26 Avr 2018
You are a member of this forum for 2 years now and asked 44 questions. And this is the first time you want to add a user defined folder to the path? I cannot image how you can work with Matlab without saving files to folders in the path.
Saeid
Saeid le 26 Avr 2018
Believe it or not, this is the first time I really need to do that.

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Ahmet Cecen
Ahmet Cecen le 26 Avr 2018
Modifié(e) : Ahmet Cecen le 26 Avr 2018
Create a startup.m file in your MATLAB user folder(usually Documents/MATLAB) then use addpath in that file.
MATLAB will execute that file everytime it starts up, meaning the paths you specify in that file will be "permenantly" available in any folder for all intents and purposes. (At least for all cases someone asking this question will likely encounter.)

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the cyclist
the cyclist le 26 Avr 2018
Modifié(e) : the cyclist le 26 Avr 2018
One way is to put any such functions into a particular directory (e.g. "utilities"), and then add that directory to the search path using the addpath command. I put the addpath command in my startup.m file, so it gets called every time I start MATLAB.
  4 commentaires
Jan
Jan le 27 Avr 2018
A correct usage of savepath is:
addpath('D:\Documents\MATLAB\Examples', '-end');
savepath
Then the path is saved to the matlabroot folder, but this requires admin privilegs. Therefore it might be better to follow the advice given in the warning message: save the pathdef.m file to your startup folder - the folder which is active initially.
It is not clear, why the saving failed in your case. Is the folder existing and do you have write privileges?
Saeid
Saeid le 27 Avr 2018
Thanks!

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