Re: [R] Modeling presence only data in R

From: Stéphane Dray <dray_at_biomserv.univ-lyon1.fr>
Date: Wed, 23 Apr 2008 16:15:12 +0200

Ecological Niche Factor Analysis (ENFA) is implemented in the adehabitat package available on CRAN.

Cheers,

Alejandro González wrote:
> Dear Milton, you have 2 packages for modelling species distribution in
> R: grasper and Biomod (by Wilfried Thuiller), but they are all
> presence-absence models, so you must generate pseudoabsences for each
> species, following recommendations in papers (see Lobo 2007). On the
> other side, there are free gis tools to perform presence-only models
> (Biomapper, GARP, Openmodeller). Write me if you need if you want some
> advice.
>
>
>

-- 
Stéphane DRAY (dray_at_biomserv.univ-lyon1.fr )
Laboratoire BBE-CNRS-UMR-5558, Univ. C. Bernard - Lyon I
43, Bd du 11 Novembre 1918, 69622 Villeurbanne Cedex, France
Tel: 33 4 72 43 27 57       Fax: 33 4 72 43 13 88
http://biomserv.univ-lyon1.fr/~dray/

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Received on Wed 23 Apr 2008 - 14:22:06 GMT

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