[GRASS-dev] v.univar vs v.db.univar

[Moritz Lennert]

On 21/06/17 23:12, Markus Neteler wrote:
> On Wed, Jun 21, 2017 at 10:19 PM, Markus Metz
> <markus.metz.giswork at gmail.com> wrote:
> ...
>> v.univar can also compute statistics on the distances between vector
>> geometries. There is no explanation in the manual what this should be good
>> for. Markus N, you wanted this feature many years ago, do you remember why?
>
> I found this related ticket:
> https://trac.osgeo.org/grass/ticket/942
>
> Checking further, I found a personal wish email to MartinL from 2009.
> AFAIR I was dealing with LiDAR point clouds of the Trentino back
> then... and needed to know the average distance between points in
> order to optimize raster binning (meanwhile I would probably use
> r.in.xyz and count the points falling into each raster cell, then
> r.univar on the resulting map).
>
> However, to have the possibility to compute statistics on the
> distances between vector (point) geometries makes sense to me in a
> GIS.

Would this possibly be better done within v.distance ? Something like a 
-s flag meaning "Output summary statistics of desired information" which 
would take the info chosen in upload=, and possibly the -a flag and 
calculated summary statistics ?

Moritz