Predicted score distributions
Now let's practicing using posterior predictive scores to look at how our Spotify model fits to the real data.
Diese Übung ist Teil des Kurses
<Kurs>Bayesian Regression Modeling with rstanarm</Kurs>Übungsanweisungen
- 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
Interaktive praktische Übung
Versuche dich an dieser Übung, indem du diesen Beispielcode vervollständigst.
# 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[___,])