logLik.varFunc Extract varFunc logLik
Description
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.
Usage
## S3 method for class 'varFunc'
logLik(object, data, ...)
Arguments
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. |
Value
the sum of the logarithms of the weights corresponding to the variance function structure represented by object.
Author(s)
José Pinheiro and Douglas Bates bates@stat.wisc.edu
See Also
Examples
vf1 <- varPower(form = ~age)
vf1 <- Initialize(vf1, Orthodont)
coef(vf1) <- 0.1
logLik(vf1)
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Licensed under the GNU General Public License.