Design and analyze two-stage randomized trials with a continuous outcome measure. The package contains functions to compute the required sample size needed to detect a given preference, treatment, and selection effect; alternatively, the package contains functions that can report the study power given a fixed sample size. Finally, analysis functions are provided to test each effect using either summary data (i.e. means, variances) or raw study data.
Author: Briana Cameron
Contributors: Denise Esserman and Michael J. Kane
if (!require(devtools)) install.packages("devtools", repos="")library(devtools)install_github("kaneplusplus/preference")