[GRASS-user] about i.gensigset warning message

Markus Neteler neteler at osgeo.org
Wed Jul 15 17:14:09 EDT 2009

On Tue, Jul 14, 2009 at 6:36 AM, P.T.M Thy<maithy.osgeo at gmail.com> wrote:
> Hi all,
> I ran i.gensigset to make the training map for SMAP-classification but I had
> several warnings as below:
> Warning: Removed a singular subsignature
> I am running GRASS-6.2.3 on linux. Can someone tell me what this warning
> means.

Please check that the training areas are not too small. From my
experience this warning appears with too few pixels in a training area.


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