identifying clusters between sets of points
I had thought Ripley's K was only for univariate situations but I just found the k12hat function in the splancs package for bivariate situations. I will give that a try. Thanks, Sam
Jos? Manuel Blanco Moreno wrote:
I'm not sure that I have correctly understood your problem, but it sounds like the sort of problems that are usually solved through Ripley's K (or some of its derivatives: Condit's Omega, Pair Correlation Function, Circumcircle methods...) Good luck. Jos? M. Blanco Sam Veloz escribi?:
I have 3 sets of points (A,B,C) with coordinates. I would like to test whether points from group A are more spatially clustered around points in group B or are points from group A more spatially clustered around points in group C. Can anyone suggest a test(or r function) for doing this? Thanks, Sam
**************************************************** Sam Veloz Postdoctoral Researcher Department of Environmental Science and Policy University of California, Davis sdveloz at ucdavis.edu