PwrGSD: Power in a Group Sequential Design

Tools for the evaluation of interim analysis plans for sequentially monitored trials on a survival endpoint; tools to construct efficacy and futility boundaries, for deriving power of a sequential design at a specified alternative, template for evaluating the performance of candidate plans at a set of time varying alternatives. See Izmirlian, G. (2014) <doi:10.4310/SII.2014.v7.n1.a4>.

Version: 2.3.3
Depends: survival
Published: 2021-01-27
Author: Grant Izmirlian
Maintainer: Grant Izmirlian <izmirlig at>
License: GPL-2 | GPL-3 [expanded from: GPL (≥ 2)]
NeedsCompilation: yes
CRAN checks: PwrGSD results


Reference manual: PwrGSD.pdf
Vignettes: Using GrpSeqBnds
Using PwrGSD
Using cpd-PwrGSD


Package source: PwrGSD_2.3.3.tar.gz
Windows binaries: r-devel:, r-devel-UCRT:, r-release:, r-oldrel:
macOS binaries: r-release (arm64): PwrGSD_2.3.3.tgz, r-release (x86_64): PwrGSD_2.3.3.tgz, r-oldrel: PwrGSD_2.3.3.tgz
Old sources: PwrGSD archive


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