Combination of Variance Functions
Usage
varComb(...)
Arguments
...
|
objects inheriting from class varFunc representing
variance function structures.
|
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 ...
.Value
a varComb
object representing a combination of variance
functions, also inheriting from class varFunc
.Author(s)
Jose Pinheiro and Douglas BatesSee Also
varWeights.varComb
, coef.varComb
Examples
library(lme)
vf1 <- varComb(varIdent(form = ~1|Sex), varPower())