[R] Concave hull

Remko Duursma remkoduursma at gmail.com
Thu Nov 26 00:39:02 CET 2009


See the function 'convhulln' in the 'geometry' package. It uses this
algorithm : http://www.qhull.org/



remko

-------------------------------------------------
Remko Duursma
Post-Doctoral Fellow

Centre for Plants and the Environment
University of Western Sydney
Hawkesbury Campus
Richmond NSW 2753

Dept of Biological Science
Macquarie University
North Ryde NSW 2109
Australia

Mobile: +61 (0)422 096908
www.remkoduursma.com



On Thu, Nov 26, 2009 at 3:37 AM, Corrado <ct529 at york.ac.uk> wrote:
> Dear friends,
>
> Do you know how to calculate the CONCAVE hull of a set of points (2-
> dimensional or n-dimensional)? is that possible in R? (With a "smoothing"
> parameter of course).
>
> Best,
> --
> Corrado Topi
>
> Global Climate Change & Biodiversity Indicators
> Area 18,Department of Biology
> University of York, York, YO10 5YW, UK
> Phone: + 44 (0) 1904 328645, E-mail: ct529 at york.ac.uk
>
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> and provide commented, minimal, self-contained, reproducible code.
>




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