[R-sig-Geo] Absences dataset

Maurizio Marchi mauriziomarchi85 at gmail.com
Tue Jun 28 17:16:54 CEST 2016


Hello everybody,
I have a question about species distribution modelling and the biomod2
package.
I have been working with the biomod2 package many times and often using the
PA selection function to create more than one pseudo-absences dataset. This
was mainly due to the lack of available information about true absences.
Now I'm i a  very good position because I have to work wit both presences
and absences but a new problem arose: the number of absences is much higher
than the presences (e.g 700 presences versus 6000 absences). So I would
like to calculate more than one run to average the results, similarly to
what I'm use to do with the pseudo-absences... So, my question is: is there
the possibility to do it automatically with the biomod2 package or should I
have to create a cycle to repeat the calculation and average the resulting
maps manually?

Many thanks, maurizio

-- 
Maurizio Marchi
Calenzano (FI) - Italy
ID Skype: maurizioxyz
Ubuntu 14.04 LTS
linux user 552742

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