Randomization Inference for Randomized Experiments R package ri2 version 0.5.0 Randomization inference procedures for simple and complex randomized designs, including multi-armed trials, as described in Gerber and Green (2012, ISBN: 978-0393979954). Users formally describe their randomization procedure and test statistic. The randomization distribution of the test statistic under some null hypothesis is efficiently simulated. Software Depends: R (>= 3.5.0) Imports: generics, ggplot2, pbapply, randomizr (>= 0.16.0), estimatr Suggests: testthat, knitr, rmarkdown, dplyr, tidyr, purrr, forcats Alexander Coppock <acoppock@gmail.com> Comprehensive R Archive Network (CRAN) Alexander Coppock [aut, cre] MIT + file LICENSE (https://CRAN.R-project.org/package=ri2/LICENSE) 2026-07-29 application/tgz https://CRAN.R-project.org/package=ri2 doi:10.32614/CRAN.package.ri2