Comprehensive Bayesian Model Diagnostics and Comparison Tools // Provides comprehensive tools for Bayesian model diagnostics and comparison. Includes prior sensitivity analysis, posterior predictive checks (Gelman et al. (2013) doi:10.1201/b16018), advanced model comparison using Pareto-smoothed importance sampling leave-one-out cross-validation (Vehtari et al. (2017) doi:10.1007/s11222-016-9696-4), convergence diagnostics, and prior elicitation tools. Integrates with 'brms' (Burkner (2017) doi:10.18637/jss.v080.i01), 'rstan', and 'rstanarm' packages for comprehensive Bayesian workflow diagnostics.