[Biomod-commits] "fitted probabilities numerically 0 or 1 occurred" and "algorithm did not converge"

Frederico Mestre mestre.frederico at gmail.com
Thu Oct 27 21:40:40 CEST 2011


Hello:

 

I'm running my models and I keep getting these errors: "fitted probabilities
numerically 0 or 1 occurred" and "algorithm did not converge".

 

I understand that this means that one of the predictor variables is
separating perfectly the values of the dependent variable. My variables are
not supposed to be so highly related to the  dependent variable. The
dependent variable is not derived from the predictors.

 

I tried than to use other variables (which I know are not very good
predictors) and I got the same errors.

 

Is it possible that this is somehow related with some error in BIOMOD or
with the structure of my data?

 

Thanks,

 

Frederico Mestre

 

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