nlme (version 3.1-1)

logLik.lmList: Log-Likelihood of an lmList Object

Description

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.

Usage

logLik(object, REML, pool)

Arguments

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").

Value

  • 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.

See Also

lmList

Examples

Run this code
data(Orthodont)
fm1 <- lmList(distance ~ age | Subject, Orthodont)
logLik(fm1)   # returns NA when it should not

Run the code above in your browser using DataCamp Workspace