Suppose that your Data is:
Data = [1 2 3;4 5 6; 7 8 9];
Would you like to create such a file?
line1 1 2 3
line2 4 5 6
line3 7 8 9
If so, this is my suggestion:
Data = [1 2 3;4 5 6; 7 8 9];
names = {'line1','line2','line3'};
fid = fopen('test_file','w');
for k=1:3
fprintf(fid,'%s\t%.2f\t%.2f\t%.2f\n',names{k},Data(k,:));
end
fclose(fid);
