nlme (version 3.1-68.1)

varWeights: Extract Variance Function Weights

Description

The inverse of the standard deviations corresponding to the variance function structure represented by object are returned.

Usage

varWeights(object)

Arguments

object

an object inheriting from class varFunc, representing a variance function structure.

Value

• if object has a weights attribute, its value is returned; else NULL is returned.

See Also

logLik.varFunc

Examples

vf1 <- varPower(form=~age)
vf1 <- Initialize(vf1, Orthodont)
coef(vf1) <- 0.3
varWeights(vf1)[1:10]