1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
% $Id: logLik.lme.Rd,v 1.7.2.1 2003/04/17 22:28:45 bates Exp $
\name{logLik.lme}
\title{Log-Likelihood of an lme Object}
\usage{
\method{logLik}{lme}(object, REML, \dots)
}
\alias{logLik.lme}
\alias{logLik.gls}
\arguments{
\item{object}{an object inheriting from class \code{lme}, representing
a fitted linear mixed-effects model.}
\item{REML}{an optional logical value. If \code{TRUE} the restricted
log-likelihood is returned, else, if \code{FALSE}, the log-likelihood
is returned. Defaults to \code{FALSE}. }
\item{\dots}{some methods for this generic require additional
arguments. None are used in this method.}
}
\description{
If \code{REML=FALSE}, returns the log-likelihood value of the linear
mixed-effects model represented by \code{object} evaluated at the
estimated coefficients; else, the restricted log-likelihood evaluated
at the estimated coefficients is returned.
}
\value{
the (restricted) log-likelihood of the model represented by
\code{object} evaluated at the estimated coefficients.
}
\references{
Harville, D.A. (1974) ``Bayesian Inference for Variance Components
Using Only Error Contrasts'', \emph{Biometrika}, \bold{61}, 383--385.
Pinheiro, J.C., and Bates, D.M. (2000) "Mixed-Effects Models
in S and S-PLUS", Springer.
}
\author{Jose Pinheiro and Douglas Bates}
\seealso{\code{\link{lme}},\code{\link{gls}},
\code{\link{logLik.corStruct}},
\code{\link{logLik.glsStruct}},
\code{\link{logLik.lmeStruct}},
\code{\link{logLik.lmList}},
\code{\link{logLik.reStruct}},
\code{\link{logLik.varFunc}},
}
\examples{
fm1 <- lme(distance ~ Sex * age, Orthodont, random = ~ age, method = "ML")
logLik(fm1)
logLik(fm1, REML = TRUE)
}
\keyword{models}
|
