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 <ct...@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: ct...@york.ac.uk > > ______________________________________________ > R-help@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. > ______________________________________________ R-help@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.