[GRASS-user] Grouping spatial points

[Benjamin Ducke]

Hi,

On 08/07/14 13:58, Johannes Radinger wrote:
> Hi,
> 
> I've a point vector containing more than 500 points.
> Some of these points are spatially clumped while
> others are single independent points (from viewing the
> map). Now I am wondering if there is any tool in 
> GRASS (or maybe other spatial-statistical software 
> like R) that can be used to group the data so that each
> point clump is assigned to a group and each single group to its
> own group. Of course, this needs a criterion where
> to distinguish between groups/clusters. I'd like to have
> groups that are separated by a distance of at least 5 km.
> 
> Is there any recommendation of a simple or more
> advanced procedure to do that?
> 

I think you are talking about hierarchical spatial
cluster detection. There is an implementation of this
in the free (but not open source) CrimeStat toolbox
(.Net & Windows only - yuck). Perhaps R has something
similar/identical?

Best,

Ben

> All suggestions all welcome! Thanks!
> 
> Best,
> Johannes
> 
> 
> _______________________________________________
> grass-user mailing list
> grass-user at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/grass-user
> 



-- 
Dr. Benjamin Ducke, M.A.
{*} Geospatial Consultant
{*} GIS Developer

  benducke at fastmail.fm