Save data from subfolders into a cell array
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Hi all,
I am trying to access several matrices from my directiry and store them in a cell array.
They are stored in a way where I have 1062 subfolders in my directory that are named with the subject ID. Each of that subfolder contains 4 individual .csv files that are all named the exact same across all subjects.
What I would like to do now is go into each of the subfolder, extract one of the 4 csv.files and save it as a matrix in a cell array. Optimally, the information to which subfolder (aka subject) the matrix belongs would also be included in the cell array.
Any help would be appreciated!
Thanks
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Stephen23
2022년 2월 4일
편집: Stephen23
2022년 2월 4일
P = 'absolute or relative path to where the subfolders are';
N = 'the name of the file that you want.CSV';
S = dir(fullfile(P,'*'));
S = S([S.isdir]); % remove files
S(ismember({S.name},{'.','..'})) = []; % remove dot directories
for k = 1:numel(S) % loop over the subfolders
F = fullfile(P,S(k).name,N);
S(k).data = readmatrix(F);
end
The imported data are simply stored in the structure S. For example the second file:
S(2).name % subject ID
S(2).data % imported file data
You can trivially loop over the structure and use indexing to process all of the file data.
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Stephen23
2022년 2월 4일
"Is the a way to skip subjects? "
You can test if a particular folder of file exists:
and add an IF condition inside the loop when the file data is imported, e.g.:
if isfile(F)
S(k).data = readmatrix(F);
end
You can do something similar for the subsubfolders too, if required.
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