AED3_SSR.boundary: Calculate the futility and efficacy stopping boundaries in Adaptive
enrichment design (Strategy 3) with Sample Size Re-estimation Procedure
for the continuous endpoint
Description
The AED3_SSR.boundary() is used to calculate the futility
and efficacy stopping boundaries in the Adaptive Enrichment Design with
Sample Size Re-estimation Procedure.
Usage
AED3_SSR.boundary(rho, alpha, pstar)
Arguments
rho
The proportion of subgroup 1
alpha
The overall Type I error rate
pstar
The (1 - power) of accepting the null hypothesis at the
interim analysis.
Value
A list contains
upper.boundary The upper or the efficacy stopping boundary
lower.boundary The lower or the futility stopping boundary