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

Markus Neteler neteler at osgeo.org
Wed Jul 29 03:44:26 EDT 2009

On Tue, Jul 28, 2009 at 12:18 PM, Thomas Becker<thomasGeo at 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:

Perhaps it is originating from a too small cluster?


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