Hi, is there a way to sample an ESRI grid using random sample points? In the past I used ESRI's spatial analyst but I would like to switch all my analyses to R if possible. The grid is from the National Land Cover Dataset (30m res, 7 landcover classes). I had roadside points from which I extracted data such as % grassland, % pine, etc in buffers of 90, 210, and 990 m radii. I would like to generate 200 random samples from the same map to compare the roadside points to random samples (and, hopefully, there are no differences). Make sense? Hope so.
Thanks, Jeff **************************************** Jeffrey A. Stratford, Ph.D. Postdoctoral Associate 331 Funchess Hall Department of Biological Sciences Auburn University Auburn, AL 36849 334-329-9198 FAX 334-844-9234 http://www.auburn.edu/~stratja _______________________________________________ R-sig-Geo mailing list R-sig-Geo@stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-sig-geo