mcmc_Rhat: Computation of the Rhat Statistic from a Single MCMC Chain

In alexanderrobitzsch/sirt: Supplementary Item Response Theory Models

Computation of the Rhat Statistic from a Single MCMC Chain

Description

Computes the Rhat statistic from a single MCMC chain.

Usage

mcmc_Rhat(mcmc_object, n_splits=3)

Arguments

mcmc_object	Object of class mcmc
n_splits	Number of splits for MCMC chain

Value

Numeric vector

Examples

## Not run: 
#############################################################################
# EXAMPLE 1: Computation Rhat statistic for 2PNO model fitting by MCMC
#############################################################################

data(data.read)

# estimate 2PNO with MCMC with 3000 iterations and 500 burn-in iterations
mod <- sirt::mcmc.2pno( dat=data.read, iter=1000, burnin=100 )
# plot MCMC chains
plot( mod$mcmcobj, ask=TRUE )
# compute Rhat statistics
round( sirt::mcmc_Rhat( mod$mcmcobj[[1]] ), 3 )

## End(Not run)

alexanderrobitzsch/sirt documentation built on April 23, 2024, 2:31 p.m.