summary.negbin

0th

Percentile

Summary Method Function for Objects of Class 'negbin'

Identical to summary.glm, but with three lines of additional output: the ML estimate of theta, its standard error, and twice the log-likelihood function.

Keywords
models
Usage
## S3 method for class 'negbin':
summary(object, dispersion = 1, correlation = FALSE, \dots)
Arguments
object
fitted model object of class negbin inheriting from glm and lm. Typically the output of glm.nb.
dispersion
as for summary.glm, with a default of 1.
correlation
as for summary.glm.
...
arguments passed to or from other methods.
Details

summary.glm is used to produce the majority of the output and supply the result. This function is a method for the generic function summary() for class "negbin". It can be invoked by calling summary(x) for an object x of the appropriate class, or directly by calling summary.negbin(x) regardless of the class of the object.

Value

  • As for summary.glm; the additional lines of output are not included in the resultant object.

Side Effects

A summary table is produced as for summary.glm, with the additional information described above.

References

Venables, W. N. and Ripley, B. D. (2002) Modern Applied Statistics with S. Fourth edition. Springer.

See Also

summary, glm.nb, negative.binomial, anova.negbin

Aliases
  • summary.negbin
  • print.summary.negbin
Examples
summary(glm.nb(Days ~ Eth*Age*Lrn*Sex, quine, link = log))
Documentation reproduced from package MASS, version 7.3-19, License: GPL-2 | GPL-3

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