[R-sig-Geo] great circle distances

[Sarah Goslee]

Hi,

On Mon, Mar 26, 2012 at 7:43 AM, A.P.B. Carneiro <apbc2 at cam.ac.uk> wrote:
> Hi
>
> I need to calculate the average nearest neighbor distance between nests
> coordinates (lat/long). However, I would like to use the great circle
> distances in spite or Euclidian distances. Is it possible to do this in
> ArcGis 10?

Probably, but you're more likely to find out the answer if you ask on
an ArcGIS list instead of an R list.

Just for completeness, here's a nice answer for R:
http://www.r-bloggers.com/great-circle-distance-calculations-in-r/

I don't use ArcGis, but googling "great circle distance ArcGIS" turns
up a lot of potentially-helpful answers.

I think StackOverflow probably has an ArcGIS discussion board you
could try for more concrete answers.

Sarah

-- 
Sarah Goslee
http://www.functionaldiversity.org