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reimplement
2003 Oct 27
0
Whitehead's group sequential procedures
...lementation of John
Whitehead's procedures for the planning and analysis of group sequential
clinical trials. His book is enlightenig but somewhat frustrating : it
has a good basic exposition of his framework, but the technical details
are sparse, and leave much work to do when one plans to reuimplement
part of the procedures. For example, one has to work out the computation
of test regions in non-trivial cases, the P-value and confidence
interval building, etc ... Given my abilities, I'd rather *not* do this ...
Did someone implement these procedures in R ? I am aware of a
(commercial)...