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csvoctave

Append Delimiter to Rows using Octave's dlmwrite function

A toy example of problem: repeatedly using Octave's "dlmwrite" function thus

dlmwrite('file',[1 2],'-append',0,8);

will give

,,,,,,,,1,2
,,,,,,,,1,2
,,,,,,,,1,2

but what I really want is this

1,2,,,,,,,,,
1,2,,,,,,,,,
1,2,,,,,,,,,

How can I use the "dlmwrite" function to append the delimiter to rows, rather than prepend, to give the result I want?

Solution

  • You could use the newline option of dlmwrite to add commas before newline.

    comma = repmat(',', 1, 8); % creates ",,,,,,,,"
dlmwrite('file', [1 2], '-append', 'newline', [comma '\n']);

    You can change \n to \r\n or \r if you are on Windows or Mac.