[Biomod-commits] Psuedo-absence: PA.nb.rep = 0, and Raster as Factor
Leon.Marshall at naturalis.nl
Tue Feb 12 14:51:21 CET 2013
I have a question regarding pseudo-absence selection: Firstly, my data-set consists species presence for 238 bee species in the Netherlands. I have this data in a single table arranged as requested by biomod2.
Am I correct in understanding that if I set PA.nb.rep = 0, biomod2 will then take as pseudo absences only the locations where my focus species is not present but other bee species have been collected?
Also, I have my explanatory variables in Raster format, one of which is a categorical variable (Levels: 10,20,21,30,40,50,60,70,80,98,99):
If I define it as.factor, will biomod then recognize it as such?
##Define raster as factor
Thanks for your help,
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