Package: PlackettLuce
Type: Package
Title: Plackett-Luce Models for Rankings
Version: 0.4.5
Authors@R: c(person("Heather", "Turner",
        email = "ht@heatherturner.net", role = c("aut", "cre"),
        comment = c(ORCID = "0000-0002-1256-3375")),
        person("Ioannis", "Kosmidis", role = "aut",
        comment = c(ORCID = "0000-0003-1556-0302")),
        person("David", "Firth", role = "aut",
        comment = c(ORCID = "0000-0003-0302-2312")),
        person("Jacob", "van Etten", role = "ctb",
        comment = c(ORCID = "0000-0001-7554-2558")))
URL: https://hturner.github.io/PlackettLuce/,
        https://github.com/hturner/PlackettLuce
BugReports: https://github.com/hturner/PlackettLuce/issues
Description: Functions to prepare rankings data and fit the
        Plackett-Luce model jointly attributed to Plackett (1975)
        <doi:10.2307/2346567> and Luce (1959, ISBN:0486441369). The
        standard Plackett-Luce model is generalized to accommodate ties
        of any order in the ranking. Partial rankings, in which only a
        subset of items are ranked in each ranking, are also
        accommodated in the implementation. Disconnected/weakly
        connected networks implied by the rankings may be handled by
        adding pseudo-rankings with a hypothetical item. Optionally, a
        multivariate normal prior may be set on the log-worth
        parameters and ranker reliabilities may be incorporated as
        proposed by Raman and Joachims (2014)
        <doi:10.1145/2623330.2623654>. Maximum a posteriori estimation
        is used when priors are set. Methods are provided to estimate
        standard errors or quasi-standard errors for inference as well
        as to fit Plackett-Luce trees. See the package website or
        vignette for further details.
License: GPL-3
Encoding: UTF-8
LazyData: true
Depends: R (>= 3.5)
Imports: CVXR, igraph, Matrix, matrixStats, methods, partykit,
        psychotools, psychotree, R6, RSpectra, qvcalc, sandwich, stats
Suggests: BayesMallows, BradleyTerry2, PLMIX, ROlogit, StatRank,
        bookdown, covr, hyper2, kableExtra, knitr, lbfgs, gnm, pmr,
        rmarkdown, survival, testthat
RoxygenNote: 7.3.3
Roxygen: list(markdown = TRUE)
VignetteBuilder: knitr
Language: en-GB
Config/testthat/edition: 3
Config/pak/sysreqs: cmake libglpk-dev libgmp3-dev make libxml2-dev
        pkg-config libclang-dev
Repository: https://hturner.r-universe.dev
Date/Publication: 2026-03-24 11:13:34 UTC
RemoteUrl: https://github.com/hturner/plackettluce
RemoteRef: HEAD
RemoteSha: 411b1ef67e906ecad0b820dd54504712307cc14f
NeedsCompilation: no
Packaged: 2026-06-22 10:13:35 UTC; root
Author: Heather Turner [aut, cre] (ORCID:
    <https://orcid.org/0000-0002-1256-3375>),
  Ioannis Kosmidis [aut] (ORCID: <https://orcid.org/0000-0003-1556-0302>),
  David Firth [aut] (ORCID: <https://orcid.org/0000-0003-0302-2312>),
  Jacob van Etten [ctb] (ORCID: <https://orcid.org/0000-0001-7554-2558>)
Maintainer: Heather Turner <ht@heatherturner.net>