Statistics (mean, min, max) change quite a lot after importing a .TIF grid file (DEM) into GRASS. According to GDAL queries in QGIS, the TIF has the following properties:
STATISTICS_MAXIMUM=2.2400000095367
STATISTICS_MEAN=0.05137734831008
STATISTICS_MINIMUM=-3.5300002098083
STATISTICS_STDDEV=0.43984890430363
After import in GRASS, with region set according to this grid (extent & cellsize), GRASS lists the properties as follows:
...
minimum: -4.21
maximum: 2.99
...
mean: 0.0451878
standard deviation: 0.435221
Especially the difference in the 'mean' worries me a bit. I checked extent and cell size, they are identical.
Does anybody have any idea why the results (especially the 'mean') are different?
I'm new to this forum, and pretty much a beginner with GRASS (7.0.0beta3 installed atm).