This package contains R-functions to perform power calculation in a group sequential clinical trial with censored survival data and possibly unequal patient allocation between treatment and control groups. The fuctions can also be used to determine the study duration in a clinical trial with censored survival data as the sum of the accrual duration, which determines the sample size in a traditional sense, and the follow-up duration, which more or less controls the number of events to be observed. This package also contains R functions and methods to display the computed results.
|Author:||Emil A. Cornea, Bahjat F. Qaqish, and Joseph G. Ibrahim|
|Maintainer:||Emil A. Cornea <ecornea at live.unc.edu>|
|CRAN checks:||CR results|
|Windows binaries:||r-devel: CR_1.0.zip, r-release: CR_1.0.zip, r-oldrel: CR_1.0.zip|
|OS X Mavericks binaries:||r-release: CR_1.0.tgz, r-oldrel: CR_1.0.tgz|
Please use the canonical form https://CRAN.R-project.org/package=CR to link to this page.