vcov.geeglm {BSagri}

Extract variance covariance matrix from objects of class geeglm

Description

Only for internal use with function glht: Extract the variance covariance matrix corresponding to the mu parameters of a gamlss-fit. Merely a wrapper of the method internally used in function summary.geeglm, package geepack.

Usage

## S3 method for class 'geeglm'
vcov(object, ...)

Arguments

object

An object of class "geeglm" as can be created by calling geeglm in package geepack.

...

Currently not used.

Details

Test version. Only for internal use. Needs implementation of warnings.

Value

A matrix of dimension m times m, if m is the length of coefficients from a geeglm fit.

See Also

packages gamlss and multcomp