[GRASS-user] r.univar: different results with different projections?

César Augusto Ramírez Franco caesarivs at gmail.com
Mon Nov 16 13:43:44 PST 2015


2015-11-16 14:47 GMT-05:00 Carlos Grohmann <carlos.grohmann at gmail.com>:

> GRASS 7.1.svn (base_maps):~ > g.region -p raster=gdem_etopo1_ice
> cells:      233280000
> GRASS 7.1.svn (base_maps):~ > r.univar map=gdem_etopo1_ice -ge
> percentile=100
> cells=58320000
> GRASS 7.1.svn (eqarea):~ > r.univar map=gdem_etopo1_ice -ge percentile=100
> cells=233280000

​​Notice how the number of pixels differs, that's the reason the statistics
are not the same​, I don't get why the region has a different number of
pixels than the raster itself in the original latlong projection...​ I
think that's the root of the issue

*César Augusto Ramírez Franco*
Laboratorio de Sistemas Complejos Naturales
Escuela de Geociencias - Facultad de Ciencias
Universidad Nacional de Colombia - Sede Medellín
Teléfono: (57-4) 430 9369 - 300 459 6085
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/grass-user/attachments/20151116/7e4e864e/attachment.html>

More information about the grass-user mailing list