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Re: matrix rank
- From: Brian Gough <bjg at network-theory dot co dot uk>
- To: "Robert G. Brown" <rgb at phy dot duke dot edu>
- Cc: GSL Discussion list <gsl-discuss at sources dot redhat dot com>
- Date: Tue, 23 Nov 2004 17:38:33 +0000
- Subject: Re: matrix rank
- References: <Pine.LNX.4.58.0411222246540.22497@lilith.rgb.private.net>
Robert G. Brown writes:
> I'm getting shot down by antispam software every time I post, so I'll
> make this up out of several short messages. First, for list
> statisticians -- I need to evaluate the rank of an MxN (possibly square)
> integer matrix. Is the best routine for this purpose one of the SVD
> routines or something else? I could write one, but I'm trying to use
> GSL code where I can as it is likely better than a simple pivoted
> elimination (and I don't have to write it:-)
For practical work the SVD with a suitable cutoff is likely the best
choice.
--
Brian Gough
Network Theory Ltd,
Commercial support for GSL --- http://www.network-theory.co.uk/gsl/