... note the typo. It's: contour( basiinID == ID, level=0.5)
:-) -- Bert Bert Gunter "The trouble with having an open mind is that people keep coming along and sticking things into it." -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) On Thu, Aug 4, 2016 at 8:03 AM, William Dunlap via R-help <r-help@r-project.org> wrote: > If 'basinID' is the matrix of basin identifiers you could draw an outline > of the basin with identifier 'ID' with > coutour( basiinID == ID, level=0.5) > Add 'add=TRUE' if you are overlaying this on an existing plot. > > Bill Dunlap > TIBCO Software > wdunlap tibco.com > > On Thu, Aug 4, 2016 at 1:51 AM, Zun Yin <yinzun2...@gmail.com> wrote: > >> D >> ear all, >> >> I have a matrix with ID of river basins (integer numbers). Now I want to >> highlight one river basin in a map by plotting only the border. Like the >> attached figure. Two river basins are highlighted by polygons. It is >> created by ferret, but I prefer to implement it by R. Anybody know how to >> do it? Thanks a lot. >> >> Cheers, >> >> Zun Yin >> >> ______________________________________________ >> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see >> 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. >> > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > 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 -- To UNSUBSCRIBE and more, see 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.
