The only text devoted entirely to the negative binomial model and its many variations, nearly every model discussed in the literature is addressed. The theoretical and distributional background of ...
called the negative binomial dispersion parameter. This is not the same as the generalized linear model dispersion , but it is an additional distribution parameter that must be estimated or set to a ...
In addition, the ESTIMATE statement is now supported. The new DIST=NEGBIN option in the MODEL statement specifies the negative binomial distribution, and the DIST=MULT option specifies the multinomial ...