[GRASS-user] extended statistics for v.rast.stats

Hamish hamish_nospam at yahoo.com
Wed Oct 10 02:19:27 EDT 2007


Hi,

I just added extended statistics support to v.rast.stats in 6.3cvs.
This follows the 'r.univar -e' extended statistics mode and gives 1st
quartile, median, 3rd quartile, and given percentile (default is 90th).

Beware if the region is too big 'r.univar -e' can fail with a memory
error as it loads the entire map into memory. I don't see a nice way
to test for that in the v.rast.stats script so the script will attempt to
continue after such a failure, with unknown results. Solutions welcome.


enjoy,
Hamish




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