performance 0.12.0

Breaking

• Aliases posterior_predictive_check() and check_posterior_predictions() for
  check_predictions() are deprecated.

• Arguments named group or group_by will be deprecated in a future release.
  Please use by instead. This affects check_heterogeneity_bias() in
  performance.

General

• Improved documentation and new vignettes added.

• check_model() gets a base_size argument, to set the base font size for plots.

• check_predictions() for stanreg and brmsfit models now returns plots in
  the usual style as for other models and no longer returns plots from
  bayesplot::pp_check().

• Updated the trained model that is used to prediction distributions in
  check_distribution().

Bug fixes

• check_model() now falls back on normal Q-Q plots when a model is not supported
  by the DHARMa package and simulated residuals cannot be calculated.