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ipw

Estimate Inverse Probability Weights

v1.3.0 · Jan 26, 2026 · MIT + file LICENSE
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Description

Functions to estimate the probability to receive the observed treatment, based on individual characteristics. The inverse of these probabilities can be used as weights when estimating causal effects from observational data via marginal structural models. Both point treatment situations and longitudinal studies can be analysed. The same functions can be used to correct for informative censoring.

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r-devel-linux-x86_64-debian-clang OK
r-devel-linux-x86_64-debian-gcc OK
r-devel-linux-x86_64-fedora-clang OK
r-devel-linux-x86_64-fedora-gcc OK
r-devel-macos-arm64 OK
r-devel-windows-x86_64 OK
r-oldrel-macos-arm64 OK
r-oldrel-macos-x86_64 OK
r-oldrel-windows-x86_64 OK
r-patched-linux-x86_64 OK
r-release-linux-x86_64 OK
r-release-macos-arm64 OK
r-release-macos-x86_64 OK
r-release-windows-x86_64 OK

Check History

OK 14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026

Dependency Network

Dependencies Reverse dependencies MASS nnet survival geepack ipw

Version History

new 1.3.0 Mar 10, 2026
updated 1.3.0 ← 1.2.2 diff Jan 26, 2026
updated 1.2.2 ← 1.2.1.1 diff Dec 7, 2025
updated 1.2.1.1 ← 1.2.1 diff Jul 27, 2025
updated 1.2.1 ← 1.2 diff Dec 10, 2023
updated 1.2 ← 1.0-11 diff Jan 6, 2023
updated 1.0-11 ← 1.0-10 diff Aug 17, 2015
updated 1.0-10 ← 1.0-9 diff Sep 10, 2011
updated 1.0-9 ← 1.0-8 diff Apr 3, 2011
updated 1.0-8 ← 1.0-7 diff Sep 29, 2010
updated 1.0-7 ← 1.0-6 diff Sep 8, 2010
updated 1.0-6 ← 1.0-5 diff Aug 19, 2010
updated 1.0-5 ← 1.0-4 diff Mar 24, 2010
updated 1.0-4 ← 1.0-3 diff Mar 7, 2010
updated 1.0-3 ← 1.0-2 diff Mar 4, 2010
updated 1.0-2 ← 1.0-1 diff Feb 13, 2010
updated 1.0-1 ← 1.0 diff Feb 7, 2010
new 1.0 Feb 3, 2010