[R] Function to find boundary of an irregular sample?

Dale Steele dale.w.steele at gmail.com
Mon Dec 3 03:41:49 CET 2007

Given a set of coordinates that form an irregular sampling area, is
there an R function to determine boundary points (coordinates defining
the limits of the area), either with or without user interaction ?

# for example, given the following irregular sampling area, how could
I define the boundary polygon?
plot(scallop$longitude, scallop$latitude)

Thanks.  --Dale

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