Package: couplr
Title: Optimal Pairing and Matching via Linear Assignment
Version: 1.8.1
Authors@R: 
    person("Gilles", "Colling", email = "gilles.colling051@gmail.com",
           role = c("aut", "cre", "cph"),
           comment = c(ORCID = "0000-0003-3070-6066"))
Description: Solves optimal pairing and matching problems using linear
        assignment algorithms. Provides implementations of the
        Hungarian method (Kuhn 1955) <doi:10.1002/nav.3800020109>,
        Jonker-Volgenant shortest path algorithm (Jonker and Volgenant
        1987) <doi:10.1007/BF02278710>, Auction algorithm (Bertsekas
        1988) <doi:10.1007/BF02186476>, cost-scaling (Goldberg and
        Kennedy 1995) <doi:10.1007/BF01585996>, scaling algorithms
        (Gabow and Tarjan 1989) <doi:10.1137/0218069>, push-relabel
        (Goldberg and Tarjan 1988) <doi:10.1145/48014.61051>, and
        Sinkhorn entropy-regularized transport (Cuturi 2013)
        <doi:10.48550/arxiv.1306.0895>. Designed for matching plots,
        sites, samples, or any pairwise optimization problem. Supports
        rectangular matrices, forbidden assignments, data frame inputs,
        batch solving, k-best solutions, and pixel-level image morphing
        for visualization. Includes automatic preprocessing with
        variable health checks, multiple scaling methods (standardized,
        range, robust), greedy matching algorithms, and comprehensive
        balance diagnostics for assessing match quality using
        standardized differences and distribution comparisons.
License: MIT + file LICENSE
Language: en-US
Encoding: UTF-8
Roxygen: list(markdown = TRUE)
Depends: R (>= 4.1.0)
Imports: Rcpp (>= 1.0.0), tibble (>= 3.0.0), dplyr (>= 1.0.0), rlang
        (>= 0.4.0), generics (>= 0.1.0), purrr (>= 0.3.0)
Suggests: testthat (>= 3.0.0), htmlwidgets, e1071, R.utils,
        microbenchmark, withr, knitr, rmarkdown, bench, parallel,
        future (>= 1.20.0), future.apply (>= 1.8.0), parallelly (>=
        1.30.0), ggplot2, ggraph, tidygraph, magick, av, png, combinat,
        cobalt, MatchIt, marginaleffects, optmatch, clue, lpSolve
LinkingTo: Rcpp
SystemRequirements: C++17
LazyData: true
VignetteBuilder: knitr
URL: https://gillescolling.com/couplr/,
        https://github.com/gcol33/couplr
BugReports: https://github.com/gcol33/couplr/issues
Config/testthat/edition: 3
Config/roxygen2/version: 8.1.0
Config/Needs/coverage: xml2
Repository: https://gcol33.r-universe.dev
Date/Publication: 2026-10-10 13:04:01 UTC
RemoteUrl: https://github.com/gcol33/couplr
RemoteRef: HEAD
RemoteSha: 42da71e4ed35a1a3e9e8b2529805c3540200f197
NeedsCompilation: yes
Packaged: 2026-10-10 14:01:10 UTC; root
Author: Gilles Colling [aut, cre, cph] (ORCID:
    <https://orcid.org/0000-0003-3070-6066>)
Maintainer: Gilles Colling <gilles.colling051@gmail.com>