Various Methods for the Two Sample Problem R package R2sample version 4.1.0 The routine twosample_test() in this package runs the two sample test using various test statistic. The p values are found via permutation or large sample theory. The routine twosample_power() allows the calculation of the power in various cases, and plot_power() draws the corresponding power graphs. The routine run.studies allows a user to quickly study the power of a new method and how it compares to some of the standard ones. Software Depends: R (>= 3.5) Imports: Rcpp, parallel, shiny, ggplot2, stats, graphics, microbenchmark LinkingTo: Rcpp Suggests: rmarkdown, knitr, testthat (>= 3.0.0) Wolfgang Rolke <wolfgang.rolke@upr.edu> Comprehensive R Archive Network (CRAN) Wolfgang Rolke [aut, cre] (ORCID: <https://orcid.org/0000-0002-3514-726X>) GPL (>= 2) 2025-06-16 application/tgz https://CRAN.R-project.org/package=R2sample doi:10.32614/CRAN.package.R2sample