Calculating the LOO estimate

Now let's practice using the loo package on our Spotify model so that we can determine which model provides the best fit to our data. The songs dataset is already loaded.

Это упражнение является частью курса

Bayesian Regression Modeling with rstanarm

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Инструкции к упражнению

Estimate a model predicting popularity from song_age
Print the LOO approximation for this model with 1 predictor
Estimate a model predicting popularity from song_age, artist_name, and their interaction
Print the LOO approximation for this model with 2 independent variables

Интерактивное практическое упражнение

Попробуйте выполнить это упражнение, дополнив этот пример кода.

# Estimate the model with 1 predictor
model_1pred <- ___(___ ~ ___, data = songs)

# Print the LOO estimate for the 1 predictor model
___(model_1pred)

# Estimate the model with both predictors
model_2pred <- ___(___ ~ ___ * ___, data = songs)

# Print the LOO estimates for the 2 predictor model
___(model_2pred)

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