posterior (version 1.6.0)

example_draws: Example draws objects

Description

Objects for use in examples, vignettes, and tests.

Usage

example_draws(example = "eight_schools")

Value

A draws object.

Arguments

example

(string) The name of the example draws object. See Details for available options.

Details

The following example draws objects are available.

eight_schools: A draws_array object with 100 iterations from each of 4 Markov chains obtained by fitting the eight schools model described in Gelman et al. (2013) with Stan. The variables are:

• mu: Overall mean of the eight schools

• tau: Standard deviation between schools

• theta: Individual means of each of the eight schools

multi_normal: A draws_array object with 100 iterations from each of the 4 Markov chains obtained by fitting a 3-dimensional multivariate normal model to 100 simulated observations. The variables are:

• mu: Mean parameter vector of length 3

• Sigma: Covariance matrix of dimension 3 x 3

References

Andrew Gelman, John B. Carlin, Hal S. Stern, David B. Dunson, Aki Vehtari and Donald B. Rubin (2013). Bayesian Data Analysis, Third Edition. Chapman and Hall/CRC.

Examples

draws_eight_schools <- example_draws("eight_schools")
summarise_draws(draws_eight_schools)

draws_multi_normal <- example_draws("multi_normal")
summarise_draws(draws_multi_normal)