On Tue, May 11, 2010 at 9:40 PM, Roger Bivand <roger.biv...@nhh.no> wrote: > On Tue, 11 May 2010, Barry Rowlingson wrote:
> Use the snap= argument to poly2nb() set to a larger but still small value > than default in that case, say 10m for projected coordinates. Ooh, yes, that's fixed it. > Barry, if you'd like to try SVN spdep from R-forge (and maybe also SVN rgeos > from R-forge), you'll find a number of speedups. Any feedback on those would > be very welcome. Computing the adjacency for about 1500 polygons with 127,000 coordinate points takes about 11 seconds - I should only need to do this once so I don't think I'll investigate speedups at the moment! thanks! Barry -- blog: http://geospaced.blogspot.com/ web: http://www.maths.lancs.ac.uk/~rowlings web: http://www.rowlingson.com/ twitter: http://twitter.com/geospacedman pics: http://www.flickr.com/photos/spacedman _______________________________________________ R-sig-Geo mailing list R-sig-Geo@stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-sig-geo