From help-octave-request at bevo dot che dot wisc dot edu Fri Jul 19 17:26:23 2002
Subject: generating binary numbers
From: Mike Miller <mbmiller at taxa dot epi dot umn dot edu>
To: Thomas Becker <ts dot becker at web dot de>
cc: Help-Octave List <help-octave at bevo dot che dot wisc dot edu>,    John W Eaton <jwe@bevo.che.wisc.edu>
Date: Fri, 19 Jul 2002 17:25:29 -0500 (CDT)

On Fri, 19 Jul 2002, Thomas Becker wrote:

> I want to generate a binary file from octave, i.e writing integer number
> 0 to 255 as binary numbers into a file.
> Can somebody give me a hint how to do this


Well, I can give you a hint.  Use the function dec2bin.  It creates a
binary string from a decimal number.  The tricky part is that it writes a
string which must then be manipulated appropriately for your purposes.
This works for me, but I'd like to hear expert opinions:

for i=0:255, x(i+1,:)=sprintf("%08i",str2num(dec2bin(i))); end

That puts the strings in a matrix called 'x'.  What I'm doing is
converting the binary strings back into integers, then I change them back
into strings with appropriate padding of zeros in front.  It seems kinda
messy but it works.

Mike



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