Extract Log-Likelihood from an lm Object

Usage

logLik(object, REML)

Arguments

object an object inheriting from class lme.
REML an optional logical value. If TRUE the restricted log-likelihood is returned, else, if FALSE, the log-likelihood is returned. Defaults to FALSE.

Description

If REML=FALSE, returns the log-likelihood value of the linear model represented by 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 linear model represented by object evaluated at the estimated coefficients.

Author(s)

Jose Pinheiro and Douglas Bates

References

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

See Also

lm

Examples

library(lme)
data(Orthodont)
fm1 <- lm(distance ~ Sex * age, Orthodont)
logLik(fm1)
logLik(fm1, RML = TRUE)


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