[GRASS-user] Grouping spatial points

[Moritz Lennert]

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.

You could create a distance matrix with v.distance and then group all 
points which have a distance < 5km between each other.

Moritz