varComb {nlme}R Documentation

Combination of Variance Functions

Description

This function is a constructor for the varComb class, representing a combination of variance functions. The corresponding variance function is equal to the product of the variance functions of the varFunc objects listed in ....

Usage

varComb(...)

Arguments

... objects inheriting from class varFunc representing variance function structures.

Value

a varComb object representing a combination of variance functions, also inheriting from class varFunc.

Author(s)

Jose Pinheiro Jose.Pinheiro@pharma.novartis.com and Douglas Bates bates@stat.wisc.edu

See Also

varWeights.varComb, coef.varComb

Examples

vf1 <- varComb(varIdent(form = ~1|Sex), varPower())

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