How to save matrixes to files with similar names in loop?

Hello everyone,

with your help I was able to create a loop that loads different datasets and then runs through my whole code. The names of the original datasets are pretty similar: for example data_ID_200.mat and data_ID_304.mat I used the following command to load these data files:

 l=dir('Z:\.....\data_ID_*.mat')
 names={l.name}
 for n=1:numel(names)
  load('[Z:\...\' names{n}])
  run('Code')

 end

Now before the loop ends and starts the next iteration I want to save some matrixes that my code created. How can I specify the names for the matrixes I want to save? Preferably I would like to save these matrixes to matrix_ID_200.mat and matrix_ID_304.mat - so that they correspond directly to my original datasets and I can easily use them in further applications that require the ID of each dataset.

Is there anyway I could do this? Right now my list for names contains:

 names = 'data_ID_200.mat'   'data_ID_304.mat'

Maybe I could kind of cut out the ID number and insert them into some kind of string??

Thanks a lot for your help!!!

Answer 1

[Guillaume]

There are many ways you could do this, for example using a regular expression to extract the ID, but a simple way:

savename = strrep(names{n}, 'data', 'matrix');
save(savename, ...);

[MC3105]

thanks a lot! Now I am able to create the right savename....how can I tell matlab that it should use this savename and where to save the file??

[MC3105]

thanks! I did it wrong before, but I found out how to do it now :)

[Guillaume]

Use save with the savename, and the names of the variables you want to save. Use fullfile to build the full path:

 save(fullfile(''Z:\.....\', savename), 'somevarname');

Answer 2

[michael scheinfeild]

files=dir(fullfile("data","*.dat");
for(n=1:length(files))
d=files(n).name;
somename=strcat('a','bla',num2str(n));....
end