[Biomod-commits] Can I use categorical variables in BIOMOD?

Wilfried Thuiller wilfried.thuiller at ujf-grenoble.fr
Tue Feb 21 11:15:58 CET 2012

Hi Andreas,
BIOMOD take categorical variables. Some technique do not (e.g. MARS) but they will be atomically excluded from the runs).
Just make sure your variable is seen as categorical:

MyData = as.factor(MyData)


Le 21 févr. 2012 à 11:08, Andreas Soteriades a écrit :

> Hi again,
> I would like to play a little bit with BIOMOD by using the sample dataset for Bradypus Variegatus which is given in the MaxEnt tutorial. The data consist of : i) a dataset with the species' localities plus continuous bioclimatic variables, ii) a dataset of background points. Nevertheless, one of the variables is categorical and it describes potential vegetation classes. Its values are distinct, ranging from 1 to 14.
> Could you please let me know if- and how- I can use the above mentioned categorical variable in BIOMOD?
> Cheers,
> Andreas
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Dr. Wilfried Thuiller
Laboratoire d'Ecologie Alpine, UMR CNRS 5553
Université Joseph Fourier
BP53, 38041 Grenoble cedex 9, France
tel: +33 (0)4 76 51 44 97
fax: +33 (0)4 76 51 42 79

Email: wilfried.thuiller at ujf-grenoble.fr
Personal website: http://www.will.chez-alice.fr
Team website: http://www-leca.ujf-grenoble.fr/equipes/emabio.htm

ERC Starting Grant TEEMBIO project: http://www.will.chez-alice.fr/Research.html
FP6 European EcoChange project: http://www.ecochange-project.eu

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