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optmatch  

Functions for Optimal Matching
View on CRAN: Click here


Download and install optmatch package within the R console
Install from CRAN:
install.packages("optmatch")

Install from Github:
library("remotes")
install_github("cran/optmatch")

Install by package version:
library("remotes")
install_version("optmatch", "0.10.8")



Attach the package and use:
library("optmatch")
Maintained by
Josh Errickson
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2005-10-29
Latest Update: 2024-09-19
Description:
Distance based bipartite matching using minimum cost flow, oriented to matching of treatment and control groups in observational studies ('Hansen' and 'Klopfer' 2006 ). 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.
How to cite:
Josh Errickson (2005). optmatch: Functions for Optimal Matching. R package version 0.10.8, https://cran.r-project.org/web/packages/optmatch. Accessed 06 Aug. 2026.
Previous versions and publish date:
(2026-07-09 06:37), 0.1-6 (2005-10-29 11:42), 0.1-7 (2006-04-05 10:36), 0.2-1 (2006-10-30 18:18), 0.2-2 (2007-04-16 22:01), 0.2-3 (2007-05-10 18:59), 0.2 (2006-06-12 10:01), 0.3-1 (2007-07-09 10:59), 0.3-2 (2007-08-09 10:02), 0.3-3 (2007-08-25 18:49), 0.3-4 (2008-02-27 19:04), 0.3-8 (2008-05-13 20:22), 0.3-9 (2008-05-14 18:44), 0.4-0 (2008-05-20 11:18), 0.4-1 (2008-07-05 18:32), 0.5-0 (2009-05-19 21:09), 0.6-0 (2009-09-28 09:51), 0.6-1 (2010-02-11 19:40), 0.7-0 (2010-07-30 16:07), 0.7-1 (2011-03-06 10:47), 0.7-3 (2012-04-02 08:49), 0.7-5 (2012-07-27 16:17), 0.8-0 (2012-11-17 08:12), 0.8-1 (2013-01-03 08:25), 0.8-3 (2013-05-16 21:50), 0.9-0 (2013-08-10 00:55), 0.9-1 (2013-11-01 07:27), 0.9-3 (2014-08-13 08:49), 0.9-5 (2015-07-31 01:06), 0.9-6 (2016-05-03 08:26), 0.9-7 (2016-12-30 00:13), 0.9-8 (2018-01-17 00:39), 0.9-9 (2018-05-15 01:31), 0.9-10 (2018-07-12 15:50), 0.9-11 (2019-07-12 19:50), 0.9-12 (2019-10-11 21:00), 0.9-13 (2019-12-06 19:10), 0.9-14 (2021-05-26 22:30), 0.9-15 (2021-08-17 18:10), 0.9-17 (2022-02-22 10:20), 0.10.0 (2022-03-15 09:10), 0.10.1 (2022-05-13 22:20), 0.10.2 (2022-05-15 01:20), 0.10.3 (2022-05-16 12:20), 0.10.4 (2022-08-09 17:30), 0.10.5 (2022-08-15 10:50), 0.10.6 (2023-02-07 09:22), 0.10.7 (2023-11-15 10:40)
Other packages that cited optmatch R package
View optmatch citation profile
Other R packages that optmatch depends, imports, suggests or enhances
Complete documentation for optmatch
Functions, R codes and Examples using the optmatch R package
Some associated functions: BlockedInfinitySparseMatrix-class . InfinitySparseMatrix-class . LEMON . antiExactMatch . as.InfinitySparseMatrix . as.list.BlockedInfinitySparseMatrix . c.optmatch . caliper-methods . caliperSize . caliperUpperBound . cbindrbind . compare_optmatch . dbind . dimnames-InfinitySparseMatrix . distUnion . edgelist . effectiveSampleSize . evaluate_primal . exactMatch . fill.NAs . findSubproblems . fmla2treatedblocking . fullmatch . getMaxProblemSize . hash_dist . ism.subset . ismBinaryOps . makeOptmatch . match_on-methods . match_on_szn_scale . matched.distances . matched . maxCaliper . mcf_c_fns . mdist . minExactMatch . minmaxctlcap . missing_x_msg . model.frame.svyglm . nuclearplants . num_eligible_matches-methods . optmatch-defunct . optmatch . optmatch_restrictions . optmatch_same_distance . pairmatch . plantdist . predict.CBPS . print.optmatch . revise_ArcInfo_nodelabels . scoreCaliper . scores . setFeasibilityConstants . setMaxProblemSize . setTryRecovery . show-BlockedInfinitySparseMatrix-method . show-InfinitySparseMatrix-method . sort.ism . standardization_scale . strata . stratumStructure . subdim-methods . subproblemSuccess . summary.ism . update.optmatch . validDistanceSpecification . 
Some associated R codes: DenseMatrix.R . InfinitySparseMatrix.R . MCFSolutions.R . Ops.optmatch.dlist.R . Optmatch-package.R . RcppExports.R . abs.optmatch.dlist.R . boxplotMethods.R . caliper.R . complementarySlackness.R . data.R . deprecated.R . distUnion.R . edgelist.R . exactMatch.R . feasible.R . fill.NAs.R . fmatch.R . fullmatch.R . makedist.R . match_on.R . matched.R . matched.distances.R . matchfailed.R . max.controls.cap.R . mdist.R . min.controls.cap.R . optmatchS3.R . pairmatch.R . print.optmatch.R . print.optmatch.dlist.R . scores.R . solve_reg_fm_prob.R . solver.R . strata.R . stratumStructure.R . summary.ism.R . summary.optmatch.R . utilities.R . zzz.R . zzzDistanceSpecification.R .  Full optmatch package functions and examples
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