logLik.varFunc: Extract varFunc logLik

Description

This method function extracts the component of a Gaussian log-likelihood associated with the variance function structure represented by object, which is equal to the sum of the logarithms of the corresponding weights.

Usage

logLik(object, data)

Arguments

Value

the sum of the logarithms of the weights corresponding to the variance function structure represented by object.

Examples

Run this code

data(Orthodont)
vf1 <- varPower(form = ~age)
vf1 <- initialize(vf1, Orthodont)
coef(vf1) <- 0.1
logLik(vf1)

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