[Biomod-commits] Yweights and Projections

[Martin Videla]

Hi Biomodellers!

I have a few questions:

1) I’m trying to use the Yweight function to weight presence points
according their georreferencing accuracy. I have these data for presence
points but obviously not for pseudoabsences so I guess this is causing a
problem when I run the models. This is the error message

Error in `[.data.frame`(tr, , 4) : undefined columns selected



So my question is how can I incorporate the georreferencing accuracy when
using pseudoabsences?



2) I run the models successfully and then I projected them using the
Projection.raster function to a large region (Latin America). The resulting
maps predict far more presences than expected. When I perform the
projection of the exact same model to a smaller area (Central America)
within the range of the species the maps look very different (better)! Does
anyone know what could be the reason for such variation?

Thank you!

Martin


-- 
Martín Videla
Centro de Investigaciones Entomológicas de Córdoba (CIEC)
Faculdad de Ciencias Exactas,Fisicas y Naturales (FCEFyN)
Universidad Nacional de Córdoba (UNC)
Velez Sarfield 299, CP: 5000, Córdoba, Argentina
TE: 0054351-4332090 int 43
e-mail: videla.martin at gmail.com
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