negative.binomial

0th

Percentile

Family function for Negative Binomial GLMs

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

Keywords
models, regression
Usage
negative.binomial(theta = stop("'theta' must be specified"), link = "log")
Arguments
theta

The known value of the additional parameter, theta.

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.

glm.nb, anova.negbin, summary.negbin

Aliases
• negative.binomial
Examples
# 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)
# }

Documentation reproduced from package MASS, version 7.3-51.1, License: GPL-2 | GPL-3

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