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Re: Zero entries in one column of a matrix

From: Miquel Cabanas
Subject: Re: Zero entries in one column of a matrix
Date: Fri, 02 Apr 2004 10:10:33 +0200
User-agent: Mutt/1.3.28i

I guess so, but I think someone else knowledgeable in Octave's code
should enlight all of us about the use of boolean matrices as index


On Thu, Apr 01, 2004 at 10:02:57AM -0800, Henry F. Mollet wrote:
> Thanks for clear explanation.
> Can I now also look at it as follows?
> In M (: , 2) the ":" operator? says use all entries/rows in the second
> column of M;
> whereas in M (M(:,2) ~= 0 , 2), the implied ":" operator? looks at the
> statement row by row and when it sees a boolean false (=0) says this is
> *not* an index and therefore the entry (which was an actual 0) has to be
> skipped?
> Henry

Miquel E Cabanas ------------------------------------------------------
SeRMN, Universitat Autonoma de Barcelona (address@hidden)

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