twang-package: Toolkit for Weighting and Analysis of Nonequivalent Groups
Description
This package offers functions for propensity score
estimating and weighting, nonresponse weighting, and diagnosis
of the weightsDetails
ll{
Package: twang
Version: 0.6-7
Date: 2006-5-17
Depends: R (>= 2.2), gbm (>= 1.5-3), survey
License: GPL (version 2 or newer)
Built: R 2.2.1; ; 2006-02-15 10:35:20; windows
}
Index:
bal.stat Calculate weighted balance statistics
bal.table Compute balance table
check.err Reports on errors and warnings
desc.wts Diagnosis of weights
diag.plot Create diagnostic plots
dx.wts Propensity score diagnostics
ks.stat Functions for evaluating balance
lalonde Lalonde's National Supported Work Demonstration
data
metric.i Losses for *.stat functions
print.dxwts Print a diagnosis of the weights
ps Propensity score estimation
ps.summary Computes balance measures
sensitivity Sensitivity analysis
stop.methods Rules for selecting the propensity scores
summary.ps Summarize a ps object
Further information is available in the following vignettes:
ll{
twang Toolkit for Weighting and Analysis of Nonequivalent Groups: A guide to the twang package (source, pdf)
}References
Dan McCaffrey, G. Ridgeway, Andrew Morral (2004). Propensity Score Estimation
with Boosted Regression for Evaluating Adolescent Substance Abuse Treatment,
Psychological Methods 9(4):403-425.
G. Ridgeway (2006). Assessing the effect of race bias in
post-traffic stop outcomes using propensity scores, Journal of
Quantitative Criminology 22(1).