CountsEPPM (version 3.1)

hatvalues.CountsEPPM: 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 CountsEPPM
hatvalues(model, ...)

Value

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

Arguments

model

fitted model object of class "CountsEPPM".

...

some methods for this generic function require additional arguments.

Author

David M. Smith <[e-mail]>

References

Cribari-Neto F, Zeileis A. (2010). Beta Regression in R. Journal of Statistical Software, 34(2), 1-24. 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)