| log_lik {rstantools} | R Documentation |
We define a new function log_lik rather than a
logLik method because (in addition to the conceptual
difference) the documentation for logLik states that the return value
will be a single number, whereas log_lik returns a matrix. See
log_lik.stanreg in the rstanarm package for an
example.
log_lik(object, ...)
object |
The object to use. |
... |
Arguments passed to methods. See the methods in the rstanarm package for examples. |
log_lik methods should return a S by N matrix,
where S is the size of the posterior sample (the number of draws from
the posterior distribution) and N is the number of data points.
Guidelines and recommendations for developers of R packages interfacing with Stan and a demonstration getting a simple package working can be found in the vignettes included with rstantools and at http://mc-stan.org/rstantools/articles/.
# See help("log_lik", package = "rstanarm")