R Observatory: Metrics for optmatch version 0.10.8

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

optmatch

0.10.8Package record

Functions for Optimal Matching

6packages dependsuggested by 17

84.2Kdownloads / year

74.1%test coverage

13/13flavors OK

Overview

About

Maintained by Josh ErricksonCRAN page ↗GitHub ↗Website ↗Issues ↗

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.

Changes in 0.10.8

Updates to internal C++ code.

From NEWS.md in the release

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. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

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). We list this channel from recorded autoCRAN download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

Health

CRAN checks

13OK

CRAN check page ↗

Slowest check: 6.2 min · r-oldrel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK13 OK2026-06-09
ERROR12 OK, 1 ERROR2026-06-08
NOTE12 OK, 1 NOTE2026-06-07

Show 4 earlier changesHide 4 earlier changes

OK12 OK2026-04-25
NOTE11 OK, 3 NOTE2026-04-22
ERROR10 OK, 3 NOTE, 1 ERROR2026-04-18
NOTE11 OK, 3 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.10.8

README· In the repository, left out of the releaseVignettesYes · 3 · dynamicNEWSYes · 100% structured · mentions 0.10.8Citation fileYes · cites a publicationWebsiteYes

Help pages: 66 (15 internal)
Examples that run: 100%16 run in a plain check
Exported functions with examples: 50%
Documented parameters: 100%
Return-value docs: 93%
Help pages citing references: 17%

Also includes 1 demo script (run with demo())

Vignettes (3)

Matching with Optmatch HTML
Matching within subgroups HTML
Using Optmatch with Foreign Software HTML

How these are measured

Downloads

84.2K

CRAN downloads in the past year

Rank #1,472 · ~231/day · ~7K/mo

Releases R versions

Daily download trend is not available in this view yet.

6.4K30 days

17.4K90 days

84.2K1 year

Compare downloads with other packages →

Also on2K r2u6 autocran2K conda_forge273 c2d4u

How downloads are counted

Repository

markmfredrickson/optmatch ↗Account: markmfredrickson

50Stars

14Forks

33Open issues

1Open PRs

0Releases

1,738Commits

11Commit identities

matchingrr-package

1,738 commits · Last activity 2026-09-24 · 0% stars, 30d · Default branch at 0.10.8.9003, ahead of CRAN 0.10.8 (checked 2026-10-21)

Responsiveness

How these are sampled

PRs merged (all time): 85%
Median days to close, 50 most recently updated closed issues: 132
Median days to close, 50 most recently updated closed PRs: 6

Stars over time

2025-06-29 · 482026-07-07 · 50

How these are measured

PracticesBeta

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

Checks run against github.com/markmfredrickson/optmatch on 2026-10-21.

Continuous integration (2)

GitHub ActionsR CMD check workflow

The R CMD check workflow runs on Linux, macOS and Windows, and on R-devel

Docs source (3)

pkgdown

GitHub Pages site last deployed 2026-09-24 · The repository has a site deploy workflow

Reproducibility and dev environment (2)

data-raw/Makefile

CRAN release process (1)

cran-comments.md

Show all practicesHide 1 practice

Lint, format, editor (1)

RStudio project

How this is detected·Detection ruleset v4 (2026-10-20)

AI coding toolsBeta

This repository shows signs of AI coding tools.

Claude Codefirst seen 2026-03-04
Commits: at least 2 crediting it in the message

Models named in its commits

Claude Opus 4.61 commit · Mar 2026
Claude Opus 51 commit · Sep 2026

Counts are commits, not lines of code. Commits by a tool's accounts count once across all of its accounts. Commits crediting it are the largest count among its credit lines, a minimum.How this is detected·Detection ruleset v4 (updated 2026-09-27)

Dependencies

Declared dependencies

19 external dependencies (excludes base and recommended)

Installing optmatch adds 17 packages (11 with compiled code, 7.5 MB of source tarballs). Heaviest: Rcpp 1.8 MB, vctrs 1.0 MB, dplyr 902 KB.

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

6direct

0indirect

Depends 1 · Imports 5

Suggested by 17

Show all 23 packagesHide all 23 packages

Depends, Imports or LinkingTo, most downloaded first

vecmatch MultiObjMatch triplesmatch psBayesborrow polymatching netmatchRI

Suggests, most downloaded first

marginaleffects MatchIt cobalt couplr rcbalance htetree matchMulti stratamatch jointVIP bigmatch rcbsubset DiPs DOS approxmatch PCAmatchR DOS2 mccount

How these are counted

Code & Tests

Datasets

People & History

People (5)

Josh Errickson

Maintainer since 0.10.0 (2022), 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

Adam Rauh

Contributor · added in 0.9-11

Previously maintained by Mark M. Fredrickson (0.7-5 to 0.9-17) and Ben B. Hansen (0.1-6 to 0.7-3).

Listed in earlier versions (7)

Show 7 peopleHide 7 people

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

Josh Buckner with embedded Fortran code due to Dimitri P. Bertsekas

no longer listed · 0.8-3

Peter Solenberger

no longer listed · 0.9-1 to 0.9-17

Releases (48)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
0.10.8Latest
record
2024-09-19 · current release · diff ↗
R
R 4.4.0 released · 2024-04-24
0.10.7
record
2023-11-15 · diff ↗
R
R 4.3.0 released · 2023-04-21
0.10.6
record
2023-02-07 · diff ↗
0.10.5
record
2022-08-15 · diff ↗
0.10.4
record
2022-08-09 · diff ↗
0.10.3
record
2022-05-16 · diff ↗
0.10.2
record
2022-05-15 · diff ↗
0.10.1
record
2022-05-13 · diff ↗ ·
added 2 exports
dbind, strata
R
R 4.2.0 released · 2022-04-22
unarchivedReturned to CRAN
2022-03-15
0.10.0
record
2022-03-15 · diff ↗ ·
removed 1 export
relaxinfo

added 1 export
LEMON
archivedRemoved from CRAN
2022-02-23
still requires archived package 'RItools'

Show 64 earlier eventsHide 64 earlier events

unarchivedReturned to CRAN
2022-02-22
0.9-17
record
2022-02-22 · diff ↗
archivedRemoved from CRAN
2022-02-19
requires archived package 'RItools'
0.9-15
record
2021-08-17 · diff ↗
0.9-14
record
2021-05-26 · diff ↗ ·
added 1 export
standardization_scale
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
0.9-13
record
2019-12-06 · diff ↗
0.9-12
record
2019-10-11 · diff ↗
0.9-11
record
2019-07-12 · diff ↗
R
R 3.6.0 released · 2019-04-26
0.9-10
record
2018-07-12 · diff ↗
0.9-9
record
2018-05-15 · diff ↗
R
R 3.5.0 released · 2018-04-23
0.9-8
record
2018-01-17 · diff ↗ ·
removed 4 exports
cbind.BlockedInfinitySparseMatrix, cbind.InfinitySparseMatrix, rbind.BlockedInfinitySparseMatrix, rbind.InfinitySparseMatrix

added 2 exports
findSubproblems, setMaxProblemSize
R
R 3.4.0 released · 2017-04-21
0.9-7
record
2016-12-30 · diff ↗
0.9-6
record
2016-05-03 · diff ↗ ·
added 6 exports
as.InfinitySparseMatrix, cbind.BlockedInfinitySparseMatrix, cbind.InfinitySparseMatrix, effectiveSampleSize, rbind.BlockedInfinitySparseMatrix, rbind.InfinitySparseMatrix
R
R 3.3.0 released · 2016-05-03
0.9-5
record
2015-07-31 · diff ↗ ·
added 1 export
getMaxProblemSize
R
R 3.2.0 released · 2015-04-16
0.9-3
record
2014-08-13 · diff ↗ ·
added 2 exports
antiExactMatch, distUnion
R
R 3.1.0 released · 2014-04-10
0.9-1
record
2013-11-01 · diff ↗
0.9-0
record
2013-08-10 · diff ↗ ·
added 5 exports
num_eligible_matches, optmatch_restrictions, optmatch_same_distance, scores, subdim
0.8-3
record
2013-05-16 · diff ↗ ·
added 4 exports
full, mahal.dist, pair, pscore.dist
R
R 3.0.0 released · 2013-04-03
0.8-1
record
2013-01-03 · diff ↗
0.8-0
record
2012-11-17 · diff ↗ ·
removed 3 exports
makedist, pscore.dist, mahal.dist

added 4 exports
match_on, maxCaliper, minExactMatch, exactMatch
0.7-5
record
2012-07-27 · diff ↗
0.7-3
record
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
record
2011-03-06 · diff ↗
R
R 2.12.0 released · 2010-10-15
0.7-0
record
2010-07-30 · diff ↗ ·
added 1 export
fill.NAs
R
R 2.11.0 released · 2010-04-22
0.6-1
record
2010-02-11 · diff ↗
R
R 2.10.0 released · 2009-10-26
0.6-0
record
2009-09-28 · diff ↗ ·
added 2 exports
caliper, mdist
0.5-0
record
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
record
2008-07-05 · diff ↗
0.4-0
record
2008-05-20 · diff ↗
0.3-9
record
2008-05-14 · diff ↗
0.3-8
record
2008-05-13 · diff ↗
R
R 2.7.0 released · 2008-04-22
0.3-4
record
2008-02-27 · diff ↗
R
R 2.6.0 released · 2007-10-03
0.3-3
record
2007-08-25 · diff ↗
0.3-2
record
2007-08-09 · diff ↗
0.3-1
record
2007-07-09 · diff ↗ ·
added 3 exports
pscore.dist, mahal.dist, matched.distances
0.2-3
record
2007-05-10 · diff ↗
R
R 2.5.0 released · 2007-04-24
0.2-2
record
2007-04-16 · diff ↗ ·
added 1 export
stratumStructure
0.2-1
record
2006-10-30 · diff ↗ ·
added 9 exports
fullmatch, pairmatch, makedist, matched, matchfailed, unmatched, maxControlsCap, minControlsCap, relaxinfo
R
R 2.4.0 released · 2006-10-03
0.2
record
2006-06-12 · diff ↗
R
R 2.3.0 released · 2006-04-24
0.1-7
record
2006-04-05 · diff ↗
0.1-6
record
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

Appears in task views

Causal Inference Optimization and Mathematical Programming

Cite

Cite this package

Run in R for the authors' entry:

citation("optmatch")

The package provides a citation file, so citation() returns the authors' own entry.

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 v2026-10-24. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-24, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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