ce_estimate_iptw_att {CIMTx}R Documentation

Causal inference with multiple treatments using IPTW for ATT effects

Description

The function ce_estimate_iptw_att implements IPTW to estimate ATT effect with multiple treatments using observational data.

Usage

ce_estimate_iptw_att(y, x, w, method, reference_trt, ...)

Arguments

y

A numeric vector (0, 1) representing a binary outcome.

x

A dataframe, including all the covariates but not treatments.

w

A numeric vector representing the treatment groups.

method

A character string. Users can selected from the following methods including "IPTW-Multinomial", "IPTW-GBM", "IPTW-SL".

reference_trt

A numeric value indicating reference treatment group for ATT effect.

...

Other parameters that can be passed through to functions.

Value

A summary of the effect estimates can be obtained with summary function. The weight distributions can be visualized using plot function.

References

Venables, W. N. & Ripley, B. D. (2002) Modern Applied Statistics with S. Fourth Edition. Springer, New York. ISBN 0-387-95457-0

Matthew Cefalu, Greg Ridgeway, Dan McCaffrey, Andrew Morral, Beth Ann Griffin and Lane Burgette (2021). twang: Toolkit for Weighting and Analysis of Nonequivalent Groups. R package version 2.5. URL:https://CRAN.R-project.org/package=twang

Noah Greifer (2021). WeightIt: Weighting for Covariate Balance in Observational Studies. R package version 0.12.0. URL:https://CRAN.R-project.org/package=WeightIt


[Package CIMTx version 1.2.0 Index]