Derives group sequential clinical trial designs and describes
    their properties. Particular focus on time-to-event, binary, and
    continuous outcomes. Largely based on methods described in
    Jennison, Christopher and Turnbull, Bruce W., 2000,
    "Group Sequential Methods with Applications to Clinical Trials"
    ISBN: 0-8493-0316-8.
| Version: | 3.7.0 | 
| Depends: | R (≥ 3.5.0) | 
| Imports: | dplyr (≥ 1.1.0), ggplot2 (≥ 3.1.1), graphics, gt, magrittr, methods, r2rtf, rlang, stats, tibble, tidyr, tools, xtable | 
| Suggests: | covr, data.table, gridExtra, kableExtra, knitr, mvtnorm, rmarkdown, scales, testthat, utils, vdiffr | 
| Published: | 2025-08-25 | 
| DOI: | 10.32614/CRAN.package.gsDesign | 
| Author: | Keaven Anderson [aut, cre],
  Merck & Co., Inc., Rahway, NJ, USA and its affiliates  [cph] | 
| Maintainer: | Keaven Anderson  <keaven_anderson at merck.com> | 
| BugReports: | https://github.com/keaven/gsDesign/issues | 
| License: | GPL (≥ 3) | 
| URL: | https://keaven.github.io/gsDesign/,
https://github.com/keaven/gsDesign | 
| NeedsCompilation: | yes | 
| Materials: | README, NEWS | 
| In views: | ClinicalTrials, ExperimentalDesign | 
| CRAN checks: | gsDesign results |