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.
Este exercício faz parte do curso
Bayesian Regression Modeling with rstanarm
Instruções do exercício
- 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
Exercício interativo prático
Experimente este exercício completando este código de exemplo.
# Create density comparison
___(stan_model, "___")
# Create scatter plot of means and standard deviations
___(stan_model, "___")