Matching

4.10-15

Multivariate and Propensity Score Matching with Balance Optimization

18packages depend

108Kdownloads / year

46.0%test coverage

13/13checks pass

Overview

About

Maintained by Jasjeet Singh SekhonFirst published 2022-04-14103 releasesCRAN page ↗GitHub ↗

Provides functions for multivariate and propensity score matching and for finding optimal balance based on a genetic search algorithm. A variety of univariate and multivariate metrics to determine if balance has been obtained are also provided. For details, see the paper by Jasjeet Sekhon (2007, doi:10.18637/jss.v042.i07).

Install

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

install.packages("Matching", 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("JasjeetSekhon/Matching")

Development version from JasjeetSekhon/Matching. 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-matching

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-Matching

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

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

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-Matching

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed).

Health

CRAN checks

13OK

Slowest check: 1.9 min · r-oldrel-windows-x86_64

Code health

Yes

Tests · ratio 0.07

46.0%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 192 wordsVignettesNopkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 95%
Return-value docs: 70%
References docs: 69%

Downloads

108K

CRAN downloads in the past year

Rank #1,341 · ~296/day · ~9K/mo

Releases R versions

Daily download trend is not available in this view yet.

7.2K30 days

24.9K90 days

108K1 year

Compare downloads with other packages →

Also on771 r2u35 autocran5.7K conda_forge68 c2d4u

Repository

GitHub ↗ jasjeetsekhon/matching

27Stars

6Forks

4Open issues

0Open PRs

0Releases

48Commits

6Contributors

48 commits · Last activity 2024-10-14 · 0% stars, 30d

Stars over time

2025-07-19 · 272026-07-07 · 27

Repository practices

Upstream repositoryBeta

1 development-tooling and community-health practice detected across 1 family in the upstream repository

Checks run against github.com/jasjeetsekhon/matching on 2026-07-19.

Continuous integration (1)

GitHub Actions

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

Dependencies

Declared dependencies

2 external dependencies (excludes base and recommended)

Depends (5)

R >= 2.6.0MASSgraphicsgrDevicesstats

Imports (0)

none

LinkingTo (0)

none

Suggests (3)

parallelrgenoud testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

18direct

0indirect

CMatching CIMTx DirectEffects MatchLinReg PSAboot SAMUR htetree predieval track2KBA vecmatch DeclareDesign MatchIt RcmdrPlugin.EZR adjustedCurves calms cobalt tableone tangram

Code & Tests

Code Composition

C++ 5,536 (40%)R 5,077 (37%)Rd 1,881 (14%)C 1,372 (10%)

Code characteristics

Object systems

S37

Cyclomatic complexity: 5.0 median / 119 max
Test cases: 4 / 0.07 per code line

Test coverage

Line coverage

46%

Expression

43.7%

Tests / Examples

46.0% / 35% ex

Functions

146 12 exported

Complexity

13.3 avg / 119 max

Call network

146 nodes / 109 edges

Call graph

Open call graph →

Loading call graph…

Lowest coverage

146 functions

Function	Cyclo	Coverage
ks.boot exp	12	0%
print.summary.Match exp	1	0%
print.summary.Matchby exp	1	0%
print.summary.ks.boot exp	1	0%
summary.ks.boot exp	3	0%
AIse	2	0%

Datasets

Bundled datasets · 2

Name	Class	Rows × Cols	Also ships in
GerberGreenImai	data.frame	10,829 × 26	–
lalonde	data.frame	445 × 12	–

People & History

People (2)

Maintainer (1)

Jasjeet Singh Sekhon

Author, Maintainer

Authors (2)

Jasjeet Singh Sekhon

Author, Maintainer

Theo Saarinen

Author · added in 4.10-2

Package Timeline

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

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Package metadata

First published: 2022-04-14
Total releases: 103 / 4 yrs
License: GPL-3 OSI
Minimum R: ≥ 2.6.0
Bundled data: 100 KB / 2 files
Download size: 248 KB
Installed size: not tracked yet
With dependencies: not tracked yet

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