[R] Generating a polygon around points

Jeff Newmiller jdnewmil at dcn.davis.CA.us
Fri Aug 15 17:15:01 CEST 2014

Not really sure I understand your constraints, but perhaps

RSiteSearch("convex hull ")

might help?
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On August 15, 2014 7:51:37 AM PDT, Bob O'Hara <rni.boh at gmail.com> wrote:
>I've been struggling for half a day on what should be a simple
>I have a data frame of lat/long coordinates that describe a region, and
>want to draw a polygon around them so I can use that as a boundary (to
>thrown at INLA, but those details aren't important). The coordinates
>almost on a regular grid: there is some variation in latitude (because
>we're on a globe).
>If the coordinates were on a regular grid, I could use as.owin() to
>a mask, and go on from there (I have code that will work). But
>doesn't like unevenly spaced points.
>Can anyone suggest a way to sort this out? Preferable without having to
>mess around transforming the coordinates.

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