Posterior Predictive Statistic Check — posterior_predictive

Computes one scalar discrepancy statistic for every posterior predictive draw and compares that distribution with the same statistic in the observed data. The returned probability is descriptive and is not an automatic model verdict.

Usage

posterior_predictive_statistic(
  x,
  statistic = c("mean", "sd", "median", "q90", "q95", "max", "tail_rate"),
  threshold = NULL
)

Arguments

x: A posterior predictive gp3bayes_prediction.
statistic: Built-in statistic: "mean", "sd", "median", "q90", "q95", "max", or "tail_rate".
threshold: Required for "tail_rate".

Value

A gp3bayes_ppc_statistic object.