Re: [R-sig-Geo] creating cluster with between-points arbitrary distances

2009-12-09 Thread Alexandre VILLERS
Dear Dan, That's exactly that ! Thank you very much. Rainer, thank you for the other approach. I had thought of something like that, and even if such loop is not too much complicated to write, before putting my hands into it, I wanted to make sure there was not an existing function hanging som

Re: [R-sig-Geo] creating cluster with between-points arbitrary distances

2009-12-09 Thread Rainer M Krug
On Thu, Dec 10, 2009 at 9:23 AM, Dan Putler wrote: > Hi Alexandre, > > Greetings from yesterday evening. > > I think I know what you want, and I've been working on the same problem > in a very different substantive context. To make sure I understand the > question, you are basically stating that i

Re: [R-sig-Geo] creating cluster with between-points arbitrary distances

2009-12-09 Thread Dan Putler
Hi Alexandre, Greetings from yesterday evening. I think I know what you want, and I've been working on the same problem in a very different substantive context. To make sure I understand the question, you are basically stating that if the gap between "nearest" birds of the same species exceeds 10

[R-sig-Geo] creating cluster with between-points arbitrary distances

2009-12-09 Thread Alexandre VILLERS
Good morning (and sorry for the cross posting on the R sig ecology), I'm still working on the spatial distribution of an aggregated bird species. I would like to test different between birds distances to create clusters and thus identify groups of birds (leks). It would be "visually" quite easy