hatvalues.CountsEPPM: Extraction of hat matrix values from CountsEPPM Objects

In CountsEPPM: Mean and Variance Modeling of Count Data

Extraction of hat matrix values from CountsEPPM Objects

Description

Extract the values of the hat matrix from models of class "CountsEPMM".

Usage

## S3 method for class 'CountsEPPM'
hatvalues(model, ...)

Arguments

model	fitted model object of class "CountsEPPM".
...	some methods for this generic function require additional arguments.

Value

The calculated hat values for the fitted model. These are used to calculate Cook's distances.

Author(s)

David M. Smith <[e-mail]>

References

Cribari-Neto F, Zeileis A. (2010). Beta Regression in R. Journal of Statistical Software, 34(2), 1-24. \Sexpr[results=rd]{tools:::Rd_expr_doi("10.18637/jss.v034.i02")}.

See Also

betareg

Examples

data("herons.group") 
output.fn  <- CountsEPPM(number.attempts ~ 0 + group,
 herons.group, model.type = 'mean only', model.name = 'Poisson')
cooks.distance(output.fn)
hatvalues(output.fn)

CountsEPPM documentation built on May 29, 2024, 11:54 a.m.