Sampling from the zombie posterior
Again pars contains the data frame representing the posterior zombie IQ distribution you calculated earlier. The code draws sample_indices: a sample of row numbers (a.k.a. indices) from the posterior. Now, let's sample from pars to calculate some new measures!
Cet exercice fait partie du cours
<cours>Fundamentals of Bayesian Data Analysis in R</cours>Exercice interactif pratique
Essayez cet exercice en complétant ce code d’exemple.
head(pars)
sample_indices <- sample( nrow(pars), size = 10000,
replace = TRUE, prob = pars$probability)
head(sample_indices)
# Sample from pars to calculate some new measures
pars_sample <- ___