Tools to Visualize, Manipulate, and Summarize MCMC Output R package MCMCvis version 0.16.5 CRAN Task View: Bayesian (https://CRAN.R-project.org/view=Bayesian) Performs key functions for MCMC analysis using minimal code - visualizes, manipulates, and summarizes MCMC output. Functions support simple and straightforward subsetting of model parameters within the calls, and produce presentable and 'publication-ready' output. MCMC output may be derived from Bayesian model output fit with Stan, NIMBLE, JAGS, and other software. Software Depends: R (>= 3.5.0) Imports: coda, rstan, methods, overlapping, colorspace Suggests: knitr, rmarkdown, testthat, cmdstanr (>= 0.5.0), posterior Casey Youngflesh <caseyyoungflesh@gmail.com> Comprehensive R Archive Network (CRAN) Casey Youngflesh [aut, cre] (ORCID: <https://orcid.org/0000-0001-6343-3311>), Christian Che-Castaldo [aut] (ORCID: <https://orcid.org/0000-0002-7670-2178>), Tyler Hardy [ctb] GPL-3 2025-11-26 application/tgz https://CRAN.R-project.org/package=MCMCvis doi:10.32614/CRAN.package.MCMCvis