only plot borders of a region in a scatter plot
On 04/08/2016 11:03 AM, William Dunlap via R-help 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)
Note the typo: that should be contour( basiinID == ID, level=0.5) Duncan Murdoch
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 <yinzun2000 at 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
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______________________________________________ R-help at 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.