search for: deviace

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2012 May 10
0
disagreement in loglikelihood and deviace in GLM with weights leads to different models selected using step()
In species distribution modeling where one uses a large sample of background points to capture background variation in presence\pseudo-absence or use\available models (0\1 response) it is frequently recommended that one weight the data so the sum of the absence weights is equal to the sum of presence weights so that the model isn?t swamped by an overwhelming and arbitrary number of background