| logLik {base} | R Documentation |
This function is generic; method functions can be written to handle
specific classes of objects. Classes which already have methods for
this function include: glm, lm,
nls in package nls
and gls, lme and others in package nlme.
logLik(object, ...) ## S3 method for class 'logLik': as.data.frame(x, row.names = NULL, optional = FALSE)
object |
any object from which a log-likelihood value, or a contribution to a log-likelihood value, can be extracted. |
... |
some methods for this generic function require additional arguments. |
x |
an object of class logLik. |
row.names, optional |
arguments to the as.data.frame
method; see its documentation. |
Returns an object, say r, of class logLik which is a
number with attributes, attr(r, "df") (degrees of
freedom) giving the number of parameters in the model.
There's a simple print method for logLik objects.
The details depend on the method function used; see the appropriate
documentation.
Jose Pinheiro and Douglas Bates
logLik.lm, logLik.glm,
logLik.gls, logLik.lme, etc.
## see the method function documentation x <- 1:5 lmx <- lm(x ~ 1) logLik(lmx) # using print.logLik() method str(logLik(lmx))