| logLik.lmList {nlme} | R Documentation |
If pool=FALSE, the (restricted) log-likelihoods of the lm
components of object are summed together. Else, the (restricted)
log-likelihood of the lm fit with different coefficients for
each level of the grouping factor associated with the partitioning of
the object components is obtained.
## S3 method for class 'lmList': logLik(object, REML, pool, ...)
object |
an object inheriting from class lmList, representing
a list of lm objects with a common model.
|
REML |
an optional logical value. If TRUE the restricted
log-likelihood is returned, else, if FALSE, the log-likelihood
is returned. Defaults to FALSE.
|
pool |
an optional logical value indicating whether all lm
components of object may be assumed to have the same error
variance. Default is attr(object, "pool").
|
... |
some methods for this generic require additional arguments. None are used in this method. |
either the sum of the (restricted) log-likelihoods of each lm
component in object, or the (restricted) log-likelihood for the
lm fit with separate coefficients for each component of
object.
Jose Pinheiro Jose.Pinheiro@pharma.novartis.com and Douglas Bates bates@stat.wisc.edu
fm1 <- lmList(distance ~ age | Subject, Orthodont) logLik(fm1) # returns NA when it should not