Posterior Predictive Testing
Now let's practice comparing our replicated predictions to our observed data more than one at a time. By comparing our data to all replications, we can assess how well the model fits the data.
Diese Übung ist Teil des Kurses
Bayesian Regression Modeling with rstanarm
Anleitung zur Übung
- Plot the density of predicted scores from replication compared to the observed density
- Create a scatter plot of the mean and standard deviations of the replicated predicted scores compared to the observed data
Interaktive Übung
Vervollständige den Beispielcode, um diese Übung erfolgreich abzuschließen.
# Create density comparison
___(stan_model, "___")
# Create scatter plot of means and standard deviations
___(stan_model, "___")