i have a cell of several matrices (all double and with the same dimension)
my_cell =
[172x15 double] [172x15 double] [172x15 double] [172x15 double]
I would to write the matrices on txt file side by side and tabulated, to obtain a .txt file with 172 rows and 60 columns (in this case)
mat = cell2mat(my_cell);
delimiter = ' '; % // used to separate two values in a row in the file
filename = 'test.txt';
dlmwrite(filename,mat,delimiter);
cat as new_mat = cat(2,mat(:,col_start1:col_end1),mat(:,col_start2:col_end2),.....); and if you want to select only some columns then I believe you want to store it in a new file. But if you want to append the earlier file then use dlmwrite('my_earlier_File.txt',new_mat,'-append',... 'delimiter',' ');>> dlmwrite('file1.txt', [c{:}],'delimiter','\t','precision','%.5f')
or
>> dlmwrite('file2.txt', c(:)','delimiter','\t','precision','%.5f')
You have to choose a precision, otherwise you'll get non-uniform lines because of different numbers of decimal places.
Code
%// output_filepath is the name of your output text file
c1 = horzcat(my_cell{:})
datacell = mat2cell(c1,ones(1,size(c1,1)),ones(1,size(c1,2)))
dlmwrite(output_filepath,datacell,'\t'); %// a TAB delimiter is used