Family function for Negative Binomial GLMs

Usage

negative.binomial(theta=stop("theta must be specified"), link="log")

Arguments

theta The known value of the additional parameter, theta.
link The link function. Currently must be one of log, sqrt or identity.

Description

Specifies the information required to fit a Negative Binomial generalized linear model, with known theta parameter, using glm().

Value

A list of functions and expressions needed by glm() to fit a Negative Binomial generalized linear model.

See Also

glm.nb, anova.negbin, summary.negbin

Examples

# Fitting a Negative Binomial model to the qine data 
# with theta=2 assumed known. 
#
data(quine)
quine.nb <- glm(Days ~ .^4, family=neg.bin(2), data=quine)

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