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

From: Dale Steele <dale.w.steele_at_gmail.com>
Date: Sun, 2 Dec 2007 21:41:49 -0500

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

R-help_at_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. Received on Mon 03 Dec 2007 - 02:45:38 GMT

Archive maintained by Robert King, hosted by the discipline of statistics at the University of Newcastle, Australia.
Archive generated by hypermail 2.2.0, at Mon 03 Dec 2007 - 04:30:16 GMT.

Mailing list information is available at https://stat.ethz.ch/mailman/listinfo/r-help. Please read the posting guide before posting to the list.