How can I write different length and different datatypes data to a text file from matlab

Right now I can only write a fixed length data to the text file ,but I need to change to a variable length data. My code:

    fileID = fopen(logfilePathLocal,'at+');
             formatSpec = '%s,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d\n';
             fprintf(fileID,formatSpec,data{1,:});
             fclose(fileID);

Answer 1

[Jan]

Width      = size(data, 2);
formatSpec = ['%s', repmat(',%d', 1, Width - 1), '\n'];

Or:

fileID = fopen(logfilePathLocal,'at+');
fprintf(fileID, '%s',  data{1,1});
fprintf(fileID, ',%d', data{1,2:end});
fprintf(fileID, '\n');
fclose(fileID);

I don't know, what is faster or easier.

[sushmita das]

I was just doing that. Thanks a lot for the verification!!

Answer 2

[Walter Roberson]

You can compute the format specification. I often construct a format using repmat and [] concatenation.

[sushmita das]

I want to make the formatSpec's length variable.

[Walter Roberson]

num_numeric = size(data,2) - 1;
formatSpec = ['%s', repmat(',%d', 1, num_numeric), '\n'];

[sushmita das]

Thanks!!

[Jan]

@Walter: Sorry, I have not seen your comment, because I had this thread opened for more than an hour and forgot to press the "relaod" button of my browser. The similarity with your answer was an accident.