gsDesign: Group Sequential Design

Derives group sequential designs and describes their properties.

Version: 3.2.0
Depends: R (≥ 3.5.0), ggplot2 (≥ 0.9.2)
Imports: stats, magrittr, rlang, methods, graphics, tools, dplyr, tidyr, xtable
Suggests: knitr, scales, rmarkdown, gt, testthat, covr, gridExtra, tibble, utils, mvtnorm
Published: 2021-03-13
Author: Keaven Anderson [aut, cre]
Maintainer: Keaven Anderson <keaven_anderson at>
License: GPL (≥ 3)
Copyright: Copyright 2010, Merck Research Laboratories
NeedsCompilation: yes
Materials: README NEWS
In views: ClinicalTrials, ExperimentalDesign
CRAN checks: gsDesign results


Reference manual: gsDesign.pdf
Vignettes: Overview of survival endpoint design
Basic time-to-event group sequential design using gsSurv
Multiplicity graphs
Two-sample normal sample size
Package source: gsDesign_3.2.0.tar.gz
Windows binaries: r-devel:, r-devel-UCRT:, r-release:, r-oldrel:
macOS binaries: r-release (arm64): gsDesign_3.2.0.tgz, r-release (x86_64): gsDesign_3.2.0.tgz, r-oldrel: gsDesign_3.2.0.tgz
Old sources: gsDesign archive

Reverse dependencies:

Reverse depends: coprimary, gsbDesign
Reverse imports: triggerstrategy
Reverse suggests: ADCT, gscounts, ph2bye, ph2mult


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