varWeights {nlme} | R Documentation |
The inverse of the standard deviations corresponding to the variance
function structure represented by object
are returned.
varWeights(object)
object |
an object inheriting from class varFunc ,
representing a variance function structure. |
if object
has a weights
attribute, its value is
returned; else NULL
is returned.
Jose Pinheiro Jose.Pinheiro@pharma.novartis.com and Douglas Bates bates@stat.wisc.edu
vf1 <- varPower(form=~age) vf1 <- Initialize(vf1, Orthodont) coef(vf1) <- 0.3 varWeights(vf1)[1:10]