twang: Toolkit for Weighting and Analysis of Nonequivalent Groups

This package offers functions for propensity score estimating and weighting, nonresponse weighting, and diagnosis of the weights. This package was originally developed by Drs. Ridgeway, McCaffrey, and Morral. Burgette, Griffin and McCaffrey updated the package during 2011-2015.

Version: 1.4-9.3
Depends: R (≥ 2.10), gbm (≥ 1.5-3), survey, xtable, lattice, latticeExtra
Published: 2015-02-02
Author: Greg Ridgeway, Dan McCaffrey, Andrew Morral, Beth Ann, Lane Burgette
Maintainer: Lane Burgette <burgette at>
License: GPL-2 | GPL-3 [expanded from: GPL (≥ 2)]
NeedsCompilation: yes
CRAN checks: twang results


Reference manual: twang.pdf
Vignettes: Propensity scores for multiple treatments: A tutorial for the mnps function
Toolkit for Weighting and Analysis of Nonequivalent Groups: A guide to the twang package
Package source: twang_1.4-9.3.tar.gz
Windows binaries: r-devel:, r-release:, r-oldrel:
OS X Snow Leopard binaries: r-release: twang_1.4-9.3.tgz, r-oldrel: twang_1.4-9.3.tgz
OS X Mavericks binaries: r-release: twang_1.4-9.3.tgz
Old sources: twang archive