Agustin wrote:
> I recall r.coarsen being a useful grass command. Why did it disappear?
AFAIK a module by that name is not in the QGIS plugin, nor GRASS 4.3, 5.x,
or 6.x.
the only mention of it I could find is here:
  http://www.osgeo.org/pipermail/grass-user/1993-June/016966.html
Hamish