Package: ppforest2
Type: Package
Title: Projection Pursuit Oblique Decision Trees and Random Forests
Version: 0.1.3.9000
Date: 2026-09-18
Authors@R: c(
    person("Andrés", "Vidal", email = "andres@andresvidal.dev", role = c("aut", "cre", "cph")),
    person("Natalia", "da Silva", role = "aut"),
    person("Niels", "Lohmann", role = "cph",
           comment = "Author of the bundled nlohmann/json library"),
    person("Melissa", "O'Neill", role = "cph",
           comment = "Author of the bundled PCG random number generator"))
Description: Builds decision trees by splitting on linear combinations
        of randomly chosen variables. Projection pursuit is used to
        choose a projection of the variables that best separates the
        groups. Using linear combinations of variables to separate
        groups takes the correlation between variables into account,
        which allows the model to outperform a traditional decision
        tree when the separation between groups occurs in combinations
        of variables. Single trees can be assembled into random forests
        for improved accuracy. Implements projection pursuit
        classification trees (Lee, Cook, Park and Lee (2013)
        <doi:10.1214/13-EJS810>) and projection pursuit forests (da
        Silva, Cook and Lee (2021)
        <doi:10.1080/10618600.2020.1870480>), following the earlier
        'PPforest' package.
URL: https://andres-vidal.github.io/ppforest2-r/,
        https://github.com/andres-vidal/ppforest2-r
BugReports: https://github.com/andres-vidal/ppforest2-r/issues
License: MIT + file LICENSE
Imports: Rcpp (>= 1.0.11)
LinkingTo: Rcpp, RcppEigen
Depends: R (>= 3.5.0)
LazyData: true
Roxygen: list(roclets = c("collate", "namespace", "rd",
        "srr::srr_stats_roclet"))
RoxygenNote: 7.3.2
Encoding: UTF-8
Suggests: generics, ggplot2, jsonlite, knitr, parsnip, patchwork,
        rlang, rmarkdown, rsample, testthat (>= 3.0.0), tibble, tune,
        vdiffr, withr, workflows, yardstick
VignetteBuilder: knitr
Config/testthat/edition: 3
Config/testthat/parallel: false
Repository: https://andres-vidal.r-universe.dev
Date/Publication: 2026-10-27 01:58:02 UTC
RemoteUrl: https://github.com/andres-vidal/ppforest2-r
RemoteRef: HEAD
RemoteSha: b4e85a01b3b220c5399e293d138cac983fe98959
NeedsCompilation: yes
Packaged: 2026-10-27 02:33:29 UTC; root
Author: Andrés Vidal [aut, cre, cph],
  Natalia da Silva [aut],
  Niels Lohmann [cph] (Author of the bundled nlohmann/json library),
  Melissa O'Neill [cph] (Author of the bundled PCG random number
    generator)
Maintainer: Andrés Vidal <andres@andresvidal.dev>