load some data.mat placed in different folders in loop

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here is the code i use to change the current folder
%%
[pathname] = uigetdir('D:\folder1');
cd(pathname);
files = dir( fullfile(pathname,'*.mat') ); % list all *.mat files
files = {files.name}'; %# file names
%%
%-----------------------------------------------------------------
then i load the different data.mat in loop by creating separate workspace variable and perform my task on these data and get result. my problem is i have fixed task to be performed on data placed in different folders so i changes folder manually by changing path each time. for example to perform my task on data placed in 'D:/folder2' i have to change it each time and run the program.
is there a way to change current folder in loop and get all result (plot of result) at once.
since i cant place all data in a single folder

Accepted Answer

per isakson
per isakson on 21 Apr 2014
Edited: per isakson on 21 Apr 2014
Try something like this
folder_list = {'d:\folder1','d:\folder2','d:\folder3'};
for jj = 1 : length( folder_list )
pathname = folder_list{jj};
cd( pathname );
files = dir( fullfile( pathname, '*.mat' ) );
...
end
or there might be a cheaper way, e.g. with dir, to set folder_list.
  2 Comments
Joseph Cheng
Joseph Cheng on 21 Apr 2014
Is there a reason you are changing directories? As long as you are keeping tack of the "current" folder as per isakson is suggesting you do not have to change folders
mausam
mausam on 21 Apr 2014
thank you.
it worked, and save mine lot of time and effort.

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