From help-octave-request at bevo dot che dot wisc dot edu Thu Aug  1 12:11:47 2002
Subject: Re: no 'spy' function?
From: Paul Kienzle <pkienzle at jazz dot ncnr dot nist dot gov>
To: Victor Eijkhout <eijkhout at cs dot utk dot edu>, help-octave@bevo.che.wisc.edu
Date: Thu, 1 Aug 2002 13:11:42 -0400

You can instead do 
	imagesc(x!=0)
if you have octave-forge (http://octave.sf.net) then you can say
	spy(sparse(x))
I have just patched spy to handle dense matrices as well, so if
you get the current version from CVS you can say simply
	spy(x)

Paul Kienzle
pkienzle at users dot sf dot net

On Thu, Aug 01, 2002 at 12:54:09PM -0400, Victor Eijkhout wrote:
> The matlab function 'spy' for inspection of a matrix pattern does not 
> seem to exist. True? (Octave 2.1.35 through fink on OSX 10.1.5) I 
> really need this little bugger!
> -- 
> Victor Eijkhout <eijkhout at cs dot utk dot edu>
> tel: 865 974 9308 (W), 865 673 6998 (H), 865 974 8296 (F)
> http://www.cs.utk.edu/~eijkhout/
> 
> 
> 
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Octave is freely available under the terms of the GNU GPL.

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