Bayesian Model Calibration R package impala version 0.1.4 Package provides tools for modular Bayesian model calibration. these tools allow for posterior exploration with sampling methods including tempering and adaptive Markov Chain Monte Carlo (MCMC). Allows for pooled calibration or hierarchal calibration of parameters. For more information see Francom et al., 2025 <DOI:10.1137/24M1644092>. Software Imports: cli, methods, progress, einsum, Suggests: fdasrvf, BASS, BayesPPR, mvBayes, coda, bayesplot, gridExtra, hexbin, knitr, rmarkdown J. Derek Tucker <jdtuck@sandia.gov> Comprehensive R Archive Network (CRAN) J. Derek Tucker [aut, cre] (ORCID: <https://orcid.org/0000-0001-8844-2169>), Sandia National Laboratories [cph, fnd] MIT + file LICENSE (https://CRAN.R-project.org/package=impala/LICENSE) 2026-08-21 application/tgz https://CRAN.R-project.org/package=impala doi:10.32614/CRAN.package.impala