Optimal Confidence Intervals for Visual Testing R package VizTest version 0.7 Identifies the optimal confidence level to represent the results of a set of pairwise tests as suggested by Armstrong and Poirier (2025) <doi:10.1017/pan.2024.24>. Software Depends: R (>= 4.1.0) Imports: dplyr, emmeans, ggplot2, ggtext, HDInterval, multcomp, tidyr Suggests: carData, collapse, factorplot (>= 1.3), forcats, ggnewscale, ggsignif, knitr, lme4, marginaleffects, multcompView, mvtnorm, patchwork, psre, rmarkdown, sandwich, testthat (>= 3.0.0), wooldridge Dave Armstrong <davearmstrong.ps@gmail.com> Comprehensive R Archive Network (CRAN) Dave Armstrong [aut, cre] (ORCID: <https://orcid.org/0000-0002-9358-2489>), William Poirier [aut] (ORCID: <https://orcid.org/0000-0002-3274-1351>) MIT + file LICENSE (https://CRAN.R-project.org/package=VizTest/LICENSE) 2026-03-03 application/tgz https://CRAN.R-project.org/package=VizTest doi:10.32614/CRAN.package.VizTest