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 <[email protected]> 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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______________________________________________
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
