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.
Deze oefening maakt deel uit van de cursus
Bayesian Regression Modeling with rstanarm
Oefeninstructies
- 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
Praktische interactieve oefening
Probeer deze oefening eens door deze voorbeeldcode in te vullen.
# Create density comparison
___(stan_model, "___")
# Create scatter plot of means and standard deviations
___(stan_model, "___")