From help-request at octave dot org Tue Dec  6 08:51:30 2005
Subject: Re: How to suppress unneeded output while using "save"
From: "John W. Eaton" <jwe at bevo dot che dot wisc dot edu>
To: Bill Denney <denney at seas dot upenn dot edu>
Cc: "Steve C. Thompson" <sct at ucsd dot edu>, paladini@rz.uni-potsdam.de,         help@octave.org
Date: Tue, 6 Dec 2005 09:51:16 -0500

On  6-Dec-2005, Bill Denney wrote:

| On Tue, 6 Dec 2005, Steve C. Thompson wrote:
| > Or `fprintf':
| >
| >  fid = fopen (filename, 'w');
| >  for i = 1 : n
| >    fprintf (fid, '%f %f %f \n', a(1), a(2), a(3));
| >  end
| >  fclose (fid);
| >
| > Or there abouts.
| 
| I think that fprintf is more vectorized, so a more general version (not 
| requiring only 3 data points per row in a) would be
| 
| fid = fopen (filename, 'w');
| for i = 1:size(a,1)
|    fprintf(fid, "%d ", a(i,:));
|    fprintf(fid, "\n");
| endfor
| fclose(fid);
| 
| Test that out, but it should be close.

Or even

  fprintf (fid, strcat (repmat (" %f", 1, columns (a)), "\n"), a');

though you may want to get a little fancier with the format string so
that there is not a space at the beginning or end of each line.

jwe



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