Thanks for your reply, My main issue is that I don't have any equations to generate the data, just a bunch of points, each corresponding to a polygon.
I was looking in package "sp" and there is a function to calculate areas ( areapl()), but not for intersecting polygons. Is there any other package that does this? Thanks On Tue, Oct 26, 2010 at 3:38 AM, Remko Duursma <remkoduur...@gmail.com>wrote: > > Dear Jonas, > > if you can write the difference in y-values between your polygons as a > function, you can use > integrate() to get the area between the polygons. > > It sounds like perhaps your x-values will not match between the polygons > because they come from different sources, so you probably have to do some > interpolating (with ?approx). > > > hope that helps, > Remko > -- > View this message in context: > http://r.789695.n4.nabble.com/calculate-area-between-intersecting-polygons-tp3012980p3013059.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > 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<http://www.r-project.org/posting-guide.html> > and provide commented, minimal, self-contained, reproducible code. > [[alternative HTML version deleted]] ______________________________________________ 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.
