object
is a one-sided formula, it is used as the argument to
varFixed
and the resulting object is returned. Else, if
object
inherits from class
varFunc
, it is returned
unchanged.
varFunc(object)
varFunc
,
representing a variance function structure.
varFunc
, representing a variance function
structure.
You can use the functions
varWeights
and
coef
to extract the weights and coefficients, respectively, from a
varFunc
variance function structure. For more details, see the links below for the generic functions
varWeights
and
coef.varFunc
.
vf1 <- varFunc(~age)