Plotting Model Uncertainty
Because we used a Bayesian estimation, we can use the posterior distributions to create a predicted regression line from each draw in our posterior samples. These lines will show the uncertainty around our overall line. The songs and stan_model objects are already loaded, along with the model_intercept and model_slope that you used in the last exercise.
Este exercício faz parte do curso
Bayesian Regression Modeling with rstanarm
Exercício interativo prático
Experimente este exercício completando este código de exemplo.
# Save the values from each draw of the posterior distribution
draws <- ___(stan_model, `___`, `___`)
# Print the `draws` data frame to the console
___