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

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sushmita das
sushmita das 2017-1-24
评论： Jan 2017-1-25
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);

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Jan
Jan 2017-1-25
编辑：Jan 2017-1-25
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.

更多回答（1 个）

Walter Roberson
Walter Roberson 2017-1-24
You can compute the format specification. I often construct a format using repmat and [] concatenation.
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Jan
Jan 2017-1-25
@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.

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