posterior_predict: Generic function for drawing from the posterior predictive distribution
Description
Draw from the posterior predictive distribution of the outcome. See
posterior_predict.stanreg()
in the rstanarm package for an example.
Usage
posterior_predict(object, ...)
Arguments
object
The object to use.
...
Arguments passed to methods. See the methods in the rstanarm
package for examples.
Value
posterior_predict() methods should return a \(D\) by \(N\)
matrix, where \(D\) is the number of draws from the posterior predictive
distribution and \(N\) is the number of data points being predicted per
draw.
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
mc-stan.org/rstantools/articles.