ipw

1.3.0

Estimate Inverse Probability Weights

1packages depend

24.9Kdownloads / year

42.2%test coverage

13/13checks pass

Overview

About

Maintained by Hung Thai TranFirst published 2010-02-0417 releasesCRAN page ↗GitHub ↗

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.

Install

R (CRAN)pak (dev)Ubuntu (r2u)Fedora (COPR)

install.packages("ipw", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("TranHung93/ipw")

Development version from TranHung93/ipw. Installs pak first if it is not already available.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-ipw

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

bspm (used by r2u) also needs make: sudo apt install make

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-ipw

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

Health

CRAN checks

13OK

Slowest check: 2.7 min · r-devel-linux-x86_64-fedora-clang

Code health

Yes

Tests · ratio 0.21

42.2%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

OK2026-06-09
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-06-08
12 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 272 wordsVignettesNopkgdown siteNoNEWSYes · 67% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 100%
References docs: 100%

Downloads

24.9K

CRAN downloads in the past year

Rank #3,273 · ~68/day · ~2.1K/mo

Releases R versions

Daily download trend is not available in this view yet.

99730 days

3.9K90 days

24.9K1 year

Compare downloads with other packages →

Also on143 r2u71 c2d4u

Repository

GitHub ↗ tranhung93/ipw

1Stars

2Forks

3Open issues

0Open PRs

0Releases

12Commits

1Contributors

12 commits · Last activity 2026-01-27 · 0% stars, 30d

Stars over time

2026-04-20 · 12026-07-07 · 1

Repository practices

Upstream repositoryBeta

7 development-tooling and community-health practices detected across 5 families in the upstream repository

Checks run against github.com/tranhung93/ipw on 2026-07-19.

Continuous integration (1)

GitHub Actions

CRAN release process (3)

cran-comments.mdrevdep/CRAN-SUBMISSION

Docs source (1)

README.Rmd

Lint, format, editor (1)

RStudio project

Show all practices

Git structural (1)

.gitattributes

How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies

3 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.2.0

Imports (7)

MASSnnetsurvivalgeepackgraphicsmethodsstats

LinkingTo (0)

none

Suggests (4)

nlmesurveyboottestthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

1direct

0indirect

ipeval

Code & Tests

Code Composition

R 1,374 (65%)Rd 731 (35%)

Code characteristics

Cyclomatic complexity: 28.0 median / 71 max
Test cases: 10 / 0.21 per code line

Test coverage

Line coverage

42%

Expression

47.9%

Tests / Examples

42.2% / 33% ex

Functions

4 4 exported

Complexity

32 avg / 71 max

Call network

4 nodes / 0 edges

Call graph

Open call graph →

Loading call graph…

Lowest coverage

4 functions

Function	Cyclo	Coverage
ipwpoint exp	39	32%
ipwtm exp	71	39%
ipwplot exp	17	86%
tstartfun exp	1	100%

Datasets

Bundled datasets · 4

Name	Class	Rows × Cols	Also ships in
basdat	data.frame	386 × 4	–
haartdat	data.frame	19,175 × 10	–
healthdat	data.frame	1,000 × 4	–
timedat	data.frame	6,291 × 3	–

People & History

People (3)

Maintainer (1)

Hung Thai Tran

Author, Maintainer

Authors (3)

Hung Thai Tran

Author, Maintainer

Ronald B. Geskus

Author

Willem M. van der Wal

Author

Listed in earlier versions (3)

Ronald B.

no longer listed · 1.0-11 to 1.3.0

Willem M.

no longer listed · 1.0-11 to 1.3.0

Hung Thai

no longer listed · 1.2.2 to 1.3.0

Package Timeline

17 releases. Pick two to compare their code metrics. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
1.3.0Latest
2026-01-27 · current release · diff ↗
1.2.2
2025-12-08 · diff ↗
1.2.1.1
2025-07-28 · diff ↗
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
1.2.1
2023-12-11 · diff ↗
R
R 4.3.0 released · 2023-04-21
1.2
2023-01-07 · diff ↗
unarchivedReturned to CRAN
2023-01-07
archivedRemoved from CRAN
2022-10-07
email to the maintainer is undeliverable
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
R
R 3.6.0 released · 2019-04-26
R
R 3.5.0 released · 2018-04-23

Show 24 earlier events

R
R 3.4.0 released · 2017-04-21
R
R 3.3.0 released · 2016-05-03
1.0-11
2015-08-18 · diff ↗
R
R 3.2.0 released · 2015-04-16
R
R 3.1.0 released · 2014-04-10
orphanedOrphaned by its maintainer
2013-12-21
maintainer address <w.m.vd.wal@umcutrecht.nl> bounced
R
R 3.0.0 released · 2013-04-03
R
R 2.15.0 released · 2012-03-30
R
R 2.14.0 released · 2011-10-31
1.0-10
2011-09-11 · diff ↗
R
R 2.13.0 released · 2011-04-13
1.0-9
2011-04-04 · diff ↗
R
R 2.12.0 released · 2010-10-15
1.0-8
2010-09-30 · diff ↗
1.0-7
2010-09-09 · diff ↗
1.0-6
2010-08-20 · diff ↗
R
R 2.11.0 released · 2010-04-22
1.0-5
2010-03-25 · diff ↗
1.0-4
2010-03-08 · diff ↗
1.0-3
2010-03-05 · diff ↗
1.0-2
2010-02-14 · diff ↗
1.0-1
2010-02-08 · diff ↗
1.0
2010-02-04
R
R 2.10.0 released · 2009-10-26

Package metadata

First published: 2010-02-04
Total releases: 17 / 16 yrs
License: MIT + file LICENSE OSI
Minimum R: ≥ 3.2.0
Bundled data: 78 KB / 4 files
Download size: 121 KB
Installed size: not tracked yet
With dependencies: not tracked yet

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