negative.binomial {MASS}  R Documentation 
Specifies the information required to fit a Negative Binomial generalized
linear model, with known theta
parameter, using glm()
.
negative.binomial(theta = stop("'theta' must be specified"), link = "log")
theta 
The known value of the additional parameter, theta .

link 
The link function. Currently must be one of log , sqrt
or identity .

A list of functions and expressions needed by glm()
to fit a Negative
Binomial generalized linear model.
Venables, W. N. and Ripley, B. D. (1999) Modern Applied Statistics with SPLUS. Third Edition. Springer.
glm.nb
, anova.negbin
,
summary.negbin
# Fitting a Negative Binomial model to the quine data # with theta = 2 assumed known. # glm(Days ~ .^4, family = negative.binomial(2), data = quine)