GroupSeq: A GUI-Based Program to Compute Probabilities Regarding Group Sequential Designs
Version 1.3.4

A graphical user interface to compute group sequential designs based on normally distributed test statistics, particularly critical boundaries, power, drift, and confidence intervals of such designs. All computations are based on the alpha spending approach by Lan-DeMets with various alpha spending functions being available to choose among.

Getting started

Package details

AuthorRoman Pahl
Date of publication2017-02-03 14:32:52
MaintainerRoman Pahl <>
LicenseGPL (>= 2)
Package repositoryView on CRAN
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GroupSeq documentation built on May 30, 2017, 6:48 a.m.