there are at least two alternatives
1) package dglm for Double generalized linear models
or probably better
2)package gamlss for Generalized Additive Models for Location Scale and
Shape. Here you can use alternative, sometimes more appropriate,
families and also you can include additive (nonp
Hello,
I am currently working with the betareg package, which allows the fitting of a
variable dispersion beta regression model (Simas et al. 2010, Computational
Statistics & Data Analysis). I was wondering whether there is any package in R
that allows me to fit variable dispersion parameters in
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