I have fitted a zero-inflated beta regression model to my data in R, using the gamlss package.

However, I am unsure of how to assess the fit of the model to my data, i.e. finding a coefficient of determination.

Does anyone know if this can be easily calculated from a zero-inflated beta regression model?

  • $\begingroup$ The function you have to use is plot(summary) $\endgroup$
    – Ole
    Commented May 24, 2015 at 14:12


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