Otherwise, all the calculations are detailed on this page:
http://www.umass.edu/landeco/research/fragstats/documents/Metrics/Metrics%20TOC.htm

The day I'll go into R developing, it will be my first exercise.


I'm particulary interested in processing a moving window analysis of fractal
dimension, which is a function of perimeter and area. I wondered if it was
possible to calculate the perimeter or a patch of connected cells?

In fact, calculations might be easier to do using vector data instead of
raster and using rgeos library. What do you think?


Best,

Mathieu

2011/10/3 Sarah Goslee <sarah.goslee@gmail.com>

> Fragstats used to be more freely available; too bad the source version
> is no longer available. It hasn't been supported for a very long time,
> but used to be downloadable anyway.
>
> Regardless, if I were going to implement that functionality in R, I would
> start with the r.le code from GRASS GIS. Using the R-GRASS would
> give you almost the same effect, but only if you already use GRASS.
>
> Sarah
>
> On Mon, Oct 3, 2011 at 7:04 AM, Barry Rowlingson
> <b.rowlingson@lancaster.ac.uk> wrote:
> > On Mon, Oct 3, 2011 at 10:47 AM, Mathieu Rajerison
> > <mathieu.rajerison@gmail.com> wrote:
> >
> >> I'm not an R developper but I do think it would deserve an R package or
> at
> >> least an implementation in an existing one :)
> >
> >  It seems to be only available as a Windows binary download with a
> > Public Domain license. Step 1 would be asking the authors to publish
> > their source code under an open source license. Then we can talk about
> > R packges!
> >
> > Barry
> >
>
>
> --
> Sarah Goslee
> http://www.functionaldiversity.org
>

	[[alternative HTML version deleted]]

