[GRASS-user] i.maxlik and 'Signature 1 is not valid (ill-conditioned) - ignored'

GRASS GRASS user
1

Hi listers,

I am using GRASS64 on Debian Lenny and I am getting warnings about ill-conditioned signatures. As usual the sigfiles are created by i.cluster and I do not know why the first signature is ignored.

I googled the warning but haven't found a solution or workaround for this.

Cheers, Thomas
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2

On Tue, Jul 28, 2009 at 12:18 PM, Thomas Becker<thomasGeo@gmx.de> wrote:

Hi listers,

I am using GRASS64 on Debian Lenny and I am getting warnings about ill-conditioned signatures. As usual the sigfiles are created by i.cluster and I do not know why the first signature is ignored.

I googled the warning but haven't found a solution or workaround for this.

An authentic answer from the author:
http://lists.osgeo.org/pipermail/grass-user/1992-August/014466.html

Perhaps it is originating from a too small cluster?

Markus