getFix {carEx}R Documentation

Get Information on Fixed Effects From a Model Object

Description

getFix extracts coefficients, their covariance matrix, and degrees of freedom from a model object. Its main purpose is to extract information needed by the wald function. To extend the wald function to a new class of model objects, it is merely necessary to write a method for getFix.

Usage

getFix(fit, ...)

## S3 method for class 'multinom'
getFix(fit, ...)

## S3 method for class 'lm'
getFix(fit, ...)

## S3 method for class 'glm'
getFix(fit, ...)

## S3 method for class 'lme'
getFix(fit, ...)

## S3 method for class 'gls'
getFix(fit, ...)

## S3 method for class 'merMod'
getFix(fit, ...)

## S3 method for class 'zeroinfl'
getFix(fit, ...)

## S3 method for class 'mipo'
getFix(fit, ...)

## S3 method for class 'MCMCglmm'
getFix(fit, ...)

## S3 method for class 'stanfit'
getFix(fit, pars, include = TRUE, ...)

## Default S3 method:
getFix(fit, ...)

Arguments

fit

A fitted model object

pars

For the stanfit method; see extract.

include

For the stanfit method; see extract.

...

Other arguments [unused]

Details

Extending the wald function to a new class of objects only requires a getFix method for the new class.

Value

Returns a list with the following components:

Methods (by class)

Author(s)

Georges Monette

See Also

wald

Examples

mod.prestige <- lm(prestige ~ education + income, data=Prestige)
getFix(mod.prestige)

## Not run: 
# Example of a getFix method for a glm object:

print(carEx:::getFix.glm)

# Example of a getFix method for a mipo object in the mice package:

print(carEx:::getFix.mipo)

## End(Not run)


[Package carEx version 0.2-0 Index]