Write comma-separated value file
csvwrite(filename,M,row,col) writes matrix M into filename starting at the specified row and column offset. The row and column arguments are zero based, so that row=0 and C=0 specify the first value in the file.
The following example creates a comma-separated value file from the matrix m.
m = [3 6 9 12 15; 5 10 15 20 25; ... 7 14 21 28 35; 11 22 33 44 55]; csvwrite('csvlist.dat',m) type csvlist.dat 3,6,9,12,15 5,10,15,20,25 7,14,21,28,35 11,22,33,44,55
The next example writes the matrix to the file, starting at a column offset of 2.
csvwrite('csvlist.dat',m,0,2) type csvlist.dat ,,3,6,9,12,15 ,,5,10,15,20,25 ,,7,14,21,28,35 ,,11,22,33,44,55
csvwrite terminates each line with a line feed character and no carriage return.
csvwrite writes a maximum of five significant digits. If you need greater precision, use dlmwrite with a precision argument.
csvwrite does not accept cell arrays for the input matrix M. To export a cell array that contains only numeric data, use cell2mat to convert the cell array to a numeric matrix before calling csvwrite. To export cell arrays with mixed alphabetic and numeric data, where each cell contains a single element, you can create an Excel® spreadsheet (if your system has Excel installed) using xlswrite. For all other cases, you must use low-level export functions to write your data. For more information, see Exporting a Cell Array to a Text File in the MATLAB® Data Import and Export documentation.