Creat a loop to generate a a mean value of data which I got form TXT files? - matlab

Question

I trying to do script to evalute my lab data into matlab, I have lots of txt files for many samples, each sample has 30 txt files. I did a function to get the data from these files and store them into a structure that contains data and labels.
I would like to know if it is possible to load all the 30 files using loop instead of line by line .
function s = try1(fn)
% adapt for other file format according to your needs
fid = fopen(fn);
s.data = [];
% skip first lines
for k=1:6
l = fgetl(fid);
% read header
a = regexp(l,',','split');
s.labels = a;
l = fgetl(fid);
k=0;
end
while( (l~=-1)&(k<130) )
l = l(1:end-1);
a = regexp(l,', ','split');
a = regexpre
p(a, ',','.');
s.data = [s.data; str2double(a(2:4))];
l = fgetl(fid);
k = k+1;
end
fclose(fid);
end

Answer 1

To do what you want with a data directory and processing each file in a loop you can use a combination of fullfile(...) and a loop. This will likely work:
dataDirectory = 'c:/myDirectory';
allFilesDir = dir(fullfile(dataDirectory , '*.txt'));
allFN = {allFilesDir.name}
% Or do this:
% allFN = {'file1.txt', 'file2.txt'};
result = [];
for ind = 1:length(allFN)
myFN = fullfile(dataDirectory, allFN{ind});
result(ind) = try1(myFN);
end
% Now get the mean:
myMean = mean([result.data])