Package: pams
Type: Package
Title: Profile Analysis via Multidimensional Scaling
Version: 0.2.0
Date: 2026-10-05
Authors@R: c(
    person("Se-Kang", "Kim",
           email = "sekangandroid@gmail.com",
           role  = c("aut", "cre"),
           comment = c(ORCID = "0000-0003-0928-3396")),
    person("Donghoh", "Kim",
           email = "donghoh.kim@gmail.com",
           role  = "aut",
           comment = c(ORCID = "0000-0001-7031-5639")))
Description: Implements Profile Analysis via Multidimensional Scaling
        (PAMS) for the identification of population-level core response
        profiles from cross-sectional and longitudinal person-score
        data. Each person profile is decomposed into a level component
        (the person mean) and a pattern component (ipsatized
        subscores). PAMS uses nonmetric multidimensional scaling via
        the SMACOF algorithm to identify a small number of core
        profiles that represent the central response patterns in a
        sample of any size. Bootstrap standard errors and
        bias-corrected and accelerated (BCa) confidence intervals for
        individual core profile coordinates are estimated, enabling
        significance testing of coordinates that is not available in
        other profile analysis methods such as cluster profile analysis
        or latent profile analysis. Person-level weights, R-squared
        values, and partial correlations with core profiles are also
        estimated, allowing individual profiles to be interpreted in
        terms of the core profile structure. PAMS can be applied to
        both cross-sectional data and longitudinal data, where core
        trajectory profiles describe how response patterns change over
        time. Methods are described in Kim and Kim (2024)
        <doi:10.20982/tqmp.20.3.p230>, de Leeuw and Mair (2009)
        <doi:10.18637/jss.v031.i03>, and Kruskal (1964)
        <doi:10.1007/BF02289565>.
License: MIT + file LICENSE
URL: https://github.com/sekangakim/pams
BugReports: https://github.com/sekangakim/pams/issues
Depends: R (>= 4.0.0)
Imports: smacof (>= 2.1.0)
Suggests: knitr, lmtest (>= 0.9.40), rmarkdown, testthat (>= 3.0.0),
        tibble
VignetteBuilder: knitr
Encoding: UTF-8
Config/testthat/edition: 3
NeedsCompilation: no
Config/roxygen2/version: 8.1.0
Config/pak/sysreqs: cmake make libicu-dev libuv1-dev libx11-dev
        zlib1g-dev
Repository: https://sekangakim.r-universe.dev
Date/Publication: 2026-10-06 09:12:20 UTC
RemoteUrl: https://github.com/sekangakim/pams
RemoteRef: HEAD
RemoteSha: 585844436c4e545cc6f89fc611929a27434a0f12
Packaged: 2026-10-07 10:46:23 UTC; root
Author: Se-Kang Kim [aut, cre] (ORCID: <https://orcid.org/0000-0003-0928-3396>),
  Donghoh Kim [aut] (ORCID: <https://orcid.org/0000-0001-7031-5639>)
Maintainer: Se-Kang Kim <sekangandroid@gmail.com>