If
object includes a
varStruct component, the inverse of
the standard deviations of the variance function structure represented
by the corresponding
varFunc object are returned; else, a
vector of ones of length equal to the number of observations in the
data frame used to fit the associated linear mixed-effects model is
returned.
USAGE:
varWeights(object)
REQUIRED ARGUMENTS:
object
an object inheriting from class
lmeStruct,
representing a list of linear mixed-effects model components, such as
reStruct,
corStruct, and
varFunc objects.
VALUE:
if
object includes a
varStruct component, a vector with
the corresponding variance weights; else, or a vector of ones.