CRTSize: Sample Size Estimation Functions for Cluster Randomized Trials

Sample size estimation in cluster (group) randomized trials. Contains traditional power-based methods, empirical smoothing (Rotondi and Donner, 2009), and updated meta-analysis techniques (Rotondi and Donner, 2012).

Version: 1.0
Depends: R (≥ 2.01)
Published: 2015-04-14
Author: Michael A Rotondi
Maintainer: Michael A Rotondi <mrotondi at>
License: GPL-2 | GPL-3 [expanded from: GPL (≥ 2)]
NeedsCompilation: no
In views: ClinicalTrials, MetaAnalysis
CRAN checks: CRTSize results


Reference manual: CRTSize.pdf
Package source: CRTSize_1.0.tar.gz
Windows binaries: r-devel:, r-release:, r-oldrel:
OS X Snow Leopard binaries: r-release: CRTSize_1.0.tgz, r-oldrel: CRTSize_1.0.tgz
OS X Mavericks binaries: r-release: CRTSize_1.0.tgz
Old sources: CRTSize archive