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) .


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Reference manual

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install.packages("PwrGSD")

2.3.1 by Grant Izmirlian, 2 months ago


Browse source code at https://github.com/cran/PwrGSD


Authors: Grant Izmirlian <[email protected]>


Documentation:   PDF Manual  


Task views: Clinical Trial Design, Monitoring, and Analysis, Design of Experiments (DoE) & Analysis of Experimental Data


GPL (>= 2) license


Depends on survival


See at CRAN