On Thu, Feb 5, 2009 at 3:21 PM, Aleksandr Andreev <aleksandr.andr...@gmail.com> wrote: > In R's maptools package, is there a built-in function to test if a > given point is "inside" a given polygon on the map? The map was > loaded from an ESRI Shapefile. The point's latitude and longitude are > known.
If everything else fails, convert the shape file into a raster and "drill down" at the location of the points. Rainer > > Thank you! > > Aleks > > -- > ------------------------ > Aleksandr Andreev > Fulbright Fellow > Graduate School of Management > St Petersburg State University > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > -- Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation Biology, UCT), Dipl. Phys. (Germany) Centre of Excellence for Invasion Biology Faculty of Science Natural Sciences Building Private Bag X1 University of Stellenbosch Matieland 7602 South Africa ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
