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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 ejercicio forma parte del curso

Bayesian Regression Modeling with rstanarm

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Instrucciones del ejercicio

  • 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

Ejercicio interactivo práctico

Prueba este ejercicio y completa el código de muestra.

# Create density comparison
___(stan_model, "___")

# Create scatter plot of means and standard deviations
___(stan_model, "___")
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