Usage
"logLik"(object, newdata = NULL, re_formula = NULL, allow_new_levels = FALSE, subset = NULL, nsamples = NULL, pointwise = FALSE, ...)
Arguments
object
A fitted model object of class brmsfit.
newdata
An optional data.frame for which to evaluate predictions.
If NULL (default), the orginal data of the model is used.
re_formula
formula containing random effects
to be considered in the prediction.
If NULL (default), include all random effects;
if NA, include no random effects.
allow_new_levels
A flag indicating if new
levels of random effects are allowed (defaults to FALSE).
Only relevant if newdata is provided.
subset
A numeric vector specifying
the posterior samples to be used.
If NULL (the default), all samples are used.
nsamples
Positive integer indicating how many
posterior samples should be used.
If NULL (the default) all samples are used.
Ignored if subset is not NULL.
pointwise
A flag indicating whether to compute the full
log-likelihood matrix at once (the default), or just return
the likelihood function along with all data and samples
required to compute the log-likelihood separately for each
observation. The latter option is rarely useful when
calling logLik directly, but rather when computing
WAIC or LOO.