S+ SeqTrial^TM

S+SeqTrial^TM, designed by Scott, is a software library for Insightful Corporation's S+ statistical software. SeqTrial is used for for designing, monitoring, and analyzing clinical trials using group sequential methods. In a classical fixed sample design, the sample size is set in advance of collecting any data. In sequential design, data are monitored throughout the collection, and the data may be analyzed after a block of data is accrued.

The SeqTrial module features comprehensive design and evaluation tools for group sequential methods, and advanced visualization tools for analyzing and interpreting results. The following pdf documents may be obtained below, or from Insightful's S+SeqTrial^TM website.