[GRASS-user] about i.gensigset warning message

[Markus Neteler]

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.

Markus