changing directory in matlab

does anyone know how to change matlab directory? for example now current directory is f:\a\b\c and i want to change to f:\a but without telling f:\ . in other words, only with giving 'a' (the name of folder) and without telling f:\ , MATLAB itself find f:\a. does anyone know how can i use this: in this link: http://www.mathworks.com/matlabcentral/fileexchange/12002-jump there is a m-file for changing MATLAB current directory to the folder matching the specified pattern. But i cant use this. what can i do ?

[Ahmed Aisa]

Hello i would like to someone help me for design system like Electrolyzer with Hydrogen tank. Best regards

Answer 1

[Daniel Shub]

What about something like:

x = pwd;
drive = x(1:3);
cd([drive, 'a']);

or

cd([drive, 'a\b']);

This will work assuming you are currently in drive "f" and want to stay in drive "f". You could also change to drive "f" and then do:

x = pwd;
drive = x(1:3);
jump = @(newpath)cd([drive, newpath]);

jump('a');

and

jump('a\b');

[mohammad]

thanks Daniel, i think this will work. pleas let me try

[mohammad]

this worked perfect! thanks a lot

dear Daniel i have another Q. about this, please help:

i must write all this command in a m-file so before running of my m-file, the jump.m must be run for describing itself (jump function). now how automatically first jump.m be run and then my m-file?

[Daniel Shub]

Can you add the three lines to the beginning of your mfile? If your mfile is a script you can execute the three lines beforehand. If your mfile is a function you can pass it the function handle "jump", but this will still require you to edit you mfile.

[mohammad]

you are right i did it and now works

thanks a lot

Answer 2

[Friedrich]

Hi,

I think this m file won't help much here since it uses the which commands to search for files with a specific name and which are on the MATLAB path only.

Are your folders, where you like to jump to, on the MATLAB path? If so, you could parse the MATLAB path for it and jump to it.

[mohammad]

Hi dear

thanks for replying

its on the current directory, but i need this: only with giving folder name ( and not giving drive name (f:) ), directory has been changed

for example

current directory is: f:\a\b\c (and in 'b' folder are two others folder: 'c' and 'd')

now i want to change to this directory with giving only 'd': f:\a\b\d