R Observatory: Metrics for optmatch version 0.10.8

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

optmatch

0.10.8

Functions for Optimal Matching

22packages depend

99.6Kdownloads / year

74.1%test coverage

13/13checks pass

Overview

About

Maintained by Josh ErricksonFirst published 2005-10-2948 releasesCRAN page ↗GitHub ↗

Distance based bipartite matching using minimum cost flow, oriented to matching of treatment and control groups in observational studies ('Hansen' and 'Klopfer' 2006 doi:10.1198/106186006X137047). Routines are provided to generate distances from generalised linear models (propensity score matching), formulas giving variables on which to limit matched distances, stratified or exact matching directives, or calipers, alone or in combination.

Install

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

install.packages("optmatch", 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("markmfredrickson/optmatch")

Development version from markmfredrickson/optmatch. 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-optmatch

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-optmatch

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-optmatch

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

Health

CRAN checks

13OK

Slowest check: 6.5 min · r-oldrel-windows-x86_64

Code health

Yes

Tests · ratio 0.93

74.1%

Coverage · measured lines

100%

Documentation · exports

7

Dependencies · direct

Check history

OK2026-08-05
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-08-01
12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
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
NOTE2026-06-07
12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Show 4 earlier snapshots

OK2026-04-25
12 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-04-22
11 OK · 3 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-04-18
10 OK · 3 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
NOTE2026-03-10
11 OK · 3 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMENoVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 93%
References docs: 17%

Downloads

99.6K

CRAN downloads in the past year

Rank #1,470 · ~273/day · ~8.3K/mo

Releases R versions

Daily download trend is not available in this view yet.

5.6K30 days

19K90 days

99.6K1 year

Compare downloads with other packages →

Also on4.2K r2u17 autocran2.3K conda_forge166 c2d4u

Repository

GitHub ↗ markmfredrickson/optmatch

50Stars

14Forks

33Open issues

1Open PRs

0Releases

1,736Commits

11Contributors

matchingrr-package

1,736 commits · Last activity 2026-07-08 · 0% stars, 30d

Stars over time

2025-06-29 · 482026-07-07 · 50

Repository practices

Upstream repositoryBeta

5 development-tooling and community-health practices detected across 4 families in the upstream repository

Checks run against github.com/markmfredrickson/optmatch on 2026-08-16.

Continuous integration (1)

GitHub Actions

Reproducibility and dev environment (2)

data-raw/Makefile

CRAN release process (1)

cran-comments.md

Lint, format, editor (1)

RStudio project

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

Dependencies

Declared dependencies

19 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.5.0

Imports (7)

Rcpp dplyrstatstibblemethodsgraphicsrlemon

LinkingTo (1)

Rcpp

Suggests (15)

RItoolsbootbiglm survey testthat roxygen2 brglm arm knitr rmarkdown markdown pander xtable rrelaxiv magrittr

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

22direct

0indirect

triplesmatch MultiObjMatch polymatching psBayesborrow vecmatch DOS DOS2 DiPs MatchIt PCAmatchR approxmatch bigmatch cobalt couplr htetree jointVIP marginaleffects matchMulti mccount rcbalance rcbsubset stratamatch

Code & Tests

Datasets

People & History

People (5)

Maintainer (1)

Josh Errickson

Maintainer, Author · added in 0.9-0

Authors (4)

Josh Errickson

Maintainer, Author · added in 0.9-0

Josh Buckner

Author · added in 0.9-0

Mark Fredrickson

Author · added in 0.6-0

Ben Hansen

Author · added in 0.10.0

Contributors (1)

Adam Rauh

Contributor · added in 0.9-11

Listed in earlier versions (9)

with embedded Fortran code due to Dimitri P. Bertsekas

no longer listed · 0.1-6 to 0.9-17

Ben B. Hansen

no longer listed · 0.1-6 to 0.9-17

Paul Tseng.

no longer listed · 0.1-6 to 0.4-1

with contributions from Mark Fredrickson

no longer listed · 0.5-0

Paul Tseng

no longer listed · 0.5-0 to 0.9-17

and Josh Buckner with embedded Fortran code due to Dimitri P. Bertsekas <dimitrib@mit.edu>

no longer listed · 0.8-3

Paul Tseng (with updates by Peter Solenberger)

no longer listed · 0.9-0

and Peter Solenberger

no longer listed · 0.9-1 to 0.9-10

Package Timeline

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

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
0.10.8Latest
2024-09-19 · current release · diff ↗
R
R 4.4.0 released · 2024-04-24
0.10.7
2023-11-15 · diff ↗
R
R 4.3.0 released · 2023-04-21
0.10.6
2023-02-07 · diff ↗
0.10.5
2022-08-15 · diff ↗
0.10.4
2022-08-09 · diff ↗
0.10.3
2022-05-16 · diff ↗
0.10.2
2022-05-15 · diff ↗
0.10.1
2022-05-13 · diff ↗
R
R 4.2.0 released · 2022-04-22
0.10.0
2022-03-15 · diff ↗
unarchivedReturned to CRAN
2022-03-15
archivedRemoved from CRAN
2022-02-23
still requires archived package 'RItools'

Show 64 earlier events

0.9-17
2022-02-22 · diff ↗
unarchivedReturned to CRAN
2022-02-22
archivedRemoved from CRAN
2022-02-19
requires archived package 'RItools'
0.9-15
2021-08-17 · diff ↗
0.9-14
2021-05-26 · diff ↗
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
0.9-13
2019-12-06 · diff ↗
0.9-12
2019-10-11 · diff ↗
0.9-11
2019-07-12 · diff ↗
R
R 3.6.0 released · 2019-04-26
0.9-10
2018-07-12 · diff ↗
0.9-9
2018-05-15 · diff ↗
R
R 3.5.0 released · 2018-04-23
0.9-8
2018-01-17 · diff ↗
R
R 3.4.0 released · 2017-04-21
0.9-7
2016-12-30 · diff ↗
0.9-6
2016-05-03 · diff ↗
R
R 3.3.0 released · 2016-05-03
0.9-5
2015-07-31 · diff ↗
R
R 3.2.0 released · 2015-04-16
0.9-3
2014-08-13 · diff ↗
R
R 3.1.0 released · 2014-04-10
0.9-1
2013-11-01 · diff ↗
0.9-0
2013-08-10 · diff ↗
0.8-3
2013-05-16 · diff ↗
R
R 3.0.0 released · 2013-04-03
0.8-1
2013-01-03 · diff ↗
0.8-0
2012-11-17 · diff ↗
0.7-5
2012-07-27 · diff ↗
0.7-3
2012-04-02 · diff ↗
R
R 2.15.0 released · 2012-03-30
R
R 2.14.0 released · 2011-10-31
R
R 2.13.0 released · 2011-04-13
0.7-1
2011-03-06 · diff ↗
R
R 2.12.0 released · 2010-10-15
0.7-0
2010-07-30 · diff ↗
R
R 2.11.0 released · 2010-04-22
0.6-1
2010-02-11 · diff ↗
R
R 2.10.0 released · 2009-10-26
0.6-0
2009-09-28 · diff ↗
0.5-0
2009-05-19 · diff ↗
R
R 2.9.0 released · 2009-04-17
R
R 2.8.0 released · 2008-10-20
0.4-1
2008-07-05 · diff ↗
0.4-0
2008-05-20 · diff ↗
0.3-9
2008-05-14 · diff ↗
0.3-8
2008-05-13 · diff ↗
R
R 2.7.0 released · 2008-04-22
0.3-4
2008-02-27 · diff ↗
R
R 2.6.0 released · 2007-10-03
0.3-3
2007-08-25 · diff ↗
0.3-2
2007-08-09 · diff ↗
0.3-1
2007-07-09 · diff ↗
0.2-3
2007-05-10 · diff ↗
R
R 2.5.0 released · 2007-04-24
0.2-2
2007-04-16 · diff ↗
0.2-1
2006-10-30 · diff ↗
R
R 2.4.0 released · 2006-10-03
0.2
2006-06-12 · diff ↗
R
R 2.3.0 released · 2006-04-24
0.1-7
2006-04-05 · diff ↗
0.1-6
2005-10-29
R
R 2.2.0 released · 2005-10-06

Package metadata

First published: 2005-10-29
Total releases: 48 / 21 yrs
License: MIT + file LICENSE OSI
Additional repositories: errickson.net
Minimum R: ≥ 3.5.0
Bundled data: 1.2 KB / 2 files
Download size: 1.0 MB
Installed size: not tracked yet
With dependencies: not tracked yet

Appears in task views

Causal Inference Optimization and Mathematical Programming

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("optmatch")

Format

Errickson, J., Buckner, J., Fredrickson, M., Hansen, B., & Rauh, A. (2024). optmatch: Functions for Optimal Matching (Version 0.10.8) [Computer software]. https://doi.org/10.32614/CRAN.package.optmatch

This is what citation() produces when a package has no citation file of its own. If it prints something else, use that.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for optmatch version 0.10.8 [Data set]. HJJB, LLC. Data release v2026-08-17. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-17, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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