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!
This exercise is part of the course
Fundamentals of Bayesian Data Analysis in R
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
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 <- ___