R help - Jun 2009 - Goodness of fit test / pseudo r^2 measure for Zero Inflated Model

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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