Simulation-based validation

Validation of the ability of OpenBUGS to successfully identify the model used to generate simulated data, using the method of Cook, Gelman and Rubin (2006).

Comparison to WinBUGS 1.4.3

Graphical summary of results of fitting the example models in OpenBUGS and WinBUGS (Technical details)

• Comparison of posterior means (W-O)/sqrt(WSE^2 + OSE^2)
• Standardized difference in posterior means 2*(W-O)/(abs(W)+abs(O))

Comparison of execution times

Comparisons between WinBUGS and OpenBUGS for each of the example models. The times are based on the same burn-in and sample sizes, so they do not account for potential differences in convergence rates or autocorrelation.