Predicted score distributions
Now let's practicing using posterior predictive scores to look at how our Spotify model fits to the real data.
Deze oefening maakt deel uit van de cursus
Bayesian Regression Modeling with rstanarm
Oefeninstructies
- Calculate the posterior predicted scores for
stan_model - Print a summary of the observed popularity scores in the
songsdata - Compare this to a summary of the 1st and 10th replications
Praktische interactieve oefening
Probeer deze oefening eens door deze voorbeeldcode in te vullen.
# Calculate posterior predictive scores
predictions <- ___(stan_model)
# Print a summary of the observed data
summary(songs$___)
# Print a summary of the 1st replication
summary(predictions[___,])
# Print a summary of the 10th replication
summary(predictions[___,])