[GRASSLIST:7636] r.statistics method=variance gives NAN

[Martin Wegmann]

Hello, 

when using r.statistics with method "variance" I receive NAN as output values, 
however if I use "average" or "stddev" the ouput  looks reasonable.
 
I tried it with GRASS 6.1-cvs a few weeks ago and GRASS 6.0 from the debian 
repository but both produced the same result.

Any idea what the problem might be?

r.statistics base=loc_july05 cover=topo_resample method=variance 
output=test.var

thanks in advance, Martin



-- 
Martin Wegmann

DLR - German Aerospace Center
German Remote Sensing Data Center
@
Dept.of Geography
Remote Sensing and Biodiversity Unit
University of Wuerzburg
Am Hubland
97074 Würzburg

phone: +49-(0)931 - 888 4797
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http://www.biota-africa.org
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