logLik.varFunc {nlme} | R Documentation |
This method function extracts the component of a Gaussian
log-likelihood associated with the variance function structure
represented by object
, which is equal to the sum of the
logarithms of the corresponding weights.
## S3 method for class 'varFunc' logLik(object, data, ...)
object |
an object inheriting from class |
data |
this argument is included to make this method function
compatible with other |
... |
some methods for this generic require additional arguments. None are used in this method. |
the sum of the logarithms of the weights corresponding to the variance
function structure represented by object
.
JosÃ© Pinheiro and Douglas Bates bates@stat.wisc.edu
vf1 <- varPower(form = ~age) vf1 <- Initialize(vf1, Orthodont) coef(vf1) <- 0.1 logLik(vf1)