PwrGSD (2.3.1)

Power in a Group Sequential Design.

http://cran.r-project.org/web/packages/PwrGSD

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) .

Maintainer: Grant Izmirlian
Author(s): Grant Izmirlian <izmirlig@mail.nih.gov>

License: GPL (>= 2)

Uses: survival
Reverse depends: FHtest

Released about 1 month ago.