Hi
I have been using a Zero-Inflated negative binomial model fitted using
the pscl zeroinfl command but I would like to extract a goodness of fit
measure are there any suitable pseudo R^2 measures available for this
type of analysis to try and assess the amount of variation in the data
explained by the model?
I have tried with the pR2 command in pscl (for computing various pseudo
R2 measures), the same package as zeroinfl, but I get the message that
there is no-applicable method when I try it with a zeroinfl model. Any
suggestions most appreciated.
Many thanks in advance
Lara
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