Don MacQueen
Lawrence Livermore National Laboratory
7000 East Ave., L-627
Livermore, CA 94550
925-423-1062
On 2/3/12 6:59 AM, "Bj?rn ?kland" <okb at skogoglandskap.no> wrote:
>Imagine that I have a large number of points (given by coordinates x and
>y) that vary in density per space. For the purpose of demonstration it
>could be generated like this: s <-
>data.frame(x=runif(10000,0,900),y=runif(10000,0,900)); plot(s)
>
>I want to create polygons around the points where point density is
>greater than a selected threshold (for example, by using krieging or
>equivalent method). For these polygons, I want to have the centre
>coordinates and the size of the area for further use in analyses.
>
>I would be very grateful if I could be shown the R packages and functions
>I should use to accomplish this, and even some outline of the code. Is it
>possible?
>
>Best regards
>Bj?rn
>
>
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