Dear Friends
I am running some SDM to assess the potential distribution of some plant
species. We want to run 3 models using presence data only (BIOBLIM, DOMIAN,
MAHAL). I am using the Dismo library for R.
We would like to evaluate the three models using the AUC the Kappa COR
(Pearson correl
Dear R users,
Is graspeR package current operative? If yes, anyone would be able to say me
how I can access to the website given by the author? (http://www.cscf.ch/grasp)
Thanks a lot to all for your compression,
Regards,
Xavier Benito Granell
PhD student
IRTA- Ecosistemes Aquàtics
Ctra. de Po
Actually, the ENFA (function enfa, in the package adehabitat) is not
really suitable for modelling environment suitability maps (though it is
still useful to discover the patterns of the ecological niche with
presence-only data). However, the package adehabitat also contains other
functions all
Dear Alejandro,
Thank you very much for your advice.
In fact I use GARP and Openmodeller, and they - up to I know - also generate
pseudo-absence when modelling. I am searching some R solution to compare the
results with OpenModeller outputs. Could you send-me a PDF (or the complete
reference) of L
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 m
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
Hi Rubén,
It also work for "presence-only" data? I haven´t absence data.
Thanks a lot.
miltinho
On 4/22/08, Rubén Roa-Ureta <[EMAIL PROTECTED]> wrote:
>
> milton ruser wrote:
>
> > Dear All,
> >
> > I have a set of environental maps and presence-only points for some
> > species.
> > How can I
milton ruser wrote:
> Dear All,
>
> I have a set of environental maps and presence-only points for some species.
> How can I generate distributions models on R using these presence-only data?
> What packages and functions can I use to do so?
>
> Kind regards,
>
> Miltinho
> Brazil
If you have l
Dear All,
I have a set of environental maps and presence-only points for some species.
How can I generate distributions models on R using these presence-only data?
What packages and functions can I use to do so?
Kind regards,
Miltinho
Brazil
[[alternative HTML version deleted]]
___
9 matches
Mail list logo
