[R] Modeling presence only data in R

[Stéphane Dray]

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/