If REML=FALSE, returns the log-likelihood value of the linear
mixed-effects model represented by object evaluated at the
estimated coefficients; else, the restricted log-likelihood evaluated
at the estimated coefficients is returned.

Usage

# S3 method for lme
logLik(object, REML, ...)

Value

the (restricted) log-likelihood of the model represented by

object evaluated at the estimated coefficients.

Arguments

object

an object inheriting from class "lme", representing
a fitted linear mixed-effects model.

REML

an optional logical value. If TRUE the restricted
log-likelihood is returned, else, if FALSE, the log-likelihood
is returned. Defaults to the method of estimation used, that is
TRUE if and only object was fitted with method =
"REML" (the default for these fitting functions) .

...

some methods for this generic require additional
arguments. None are used in this method.

Author

José Pinheiro and Douglas Bates

References

Harville, D.A. (1974) ``Bayesian Inference for Variance Components
Using Only Error Contrasts'', Biometrika, 61, 383--385.

Pinheiro, J.C., and Bates, D.M. (2000) "Mixed-Effects Models
in S and S-PLUS", Springer.