<jgarcia <at> ija.csic.es> writes: > > Hello; > Please coud you advise me of a simple way to select points (x,y > coordinates) that fall within a polygon. > I've got a set of polygons, each one defined by an arbitrary number of > points, and several points inside each polygon. > I know this is simple with a GIS, but I'd rather do it inside R.
If your data are geographical, please see ?"overlay-methods" in the sp package. You may also choose to follow up this question on the R-sig-geo list. There are also ways of doing this at a lower level (without creating sp objects first) in at least the splancs package, say if the data are not geographical. Roger > Thanks and best regards, > Javier > ----- > > ______________________________________________ > R-help <at> 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. > > ______________________________________________ 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.
