negative.binomial: Family function for Negative Binomial GLMs

Description

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

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, as a character string, name or one-element
character vector specifying one of log, sqrt
or identity, or an object of class
"link-glm".

Value

An object of class "family", a list of functions and
expressions needed by glm() to fit a Negative Binomial
generalized linear model.

References

Venables, W. N. and Ripley, B. D. (1999)
Modern Applied Statistics with S-PLUS. Third
Edition. Springer.

# NOT RUN {# Fitting a Negative Binomial model to the quine data# with theta = 2 assumed known.#glm(Days ~ .^4, family = negative.binomial(2), data = quine)
# }