Package: risdr
Title: Regularised and Information-Theoretic Sufficient Dimension
        Reduction
Version: 0.4.0
Authors@R: 
    person("Kabir", "Olorede", email = "kabirolorede@gmail.com", role = c("aut", "cre"))
Description: Implements covariance-stabilised sufficient dimension
        reduction for continuous responses, with an additional sparse
        engine for continuous, categorical, and right-censored survival
        responses and information-theoretic structural dimension
        selection. Supported methods include sliced inverse regression,
        sliced average variance estimation, directional regression, and
        principal Hessian directions. Sample, ridge, Oracle
        Approximating Shrinkage, Ledoit-Wolf, and Maximum Entropy
        Covariance (MEC) estimators are provided alongside prediction,
        resampling, simulation, and diagnostic utilities. The
        sufficient dimension reduction methods build on Li (1991)
        <doi:10.1080/01621459.1991.10475035>, Li (1992)
        <doi:10.1080/01621459.1992.10476258>, and Li and Wang (2007)
        <doi:10.1198/016214507000000536>. Covariance shrinkage follows
        Olorede and Yahya (2019) <doi:10.48550/arXiv.1909.13017>,
        Ledoit and Wolf (2004) <doi:10.1016/S0047-259X(03)00096-4> and
        Chen et al. (2010) <doi:10.1109/TSP.2010.2053029>.
License: GPL (>= 3)
Encoding: UTF-8
Language: en-GB
Depends: R (>= 4.1.0)
Roxygen: list(markdown = TRUE)
Imports: stats, graphics, utils, MASS, Matrix, survival, nnet
Suggests: dplyr, knitr, readr, rmarkdown, testthat (>= 3.0.0), VIM,
        withr
Config/testthat/edition: 3
Config/Needs/coverage: covr, xml2
Config/Needs/website: r-lib/pkgdown
VignetteBuilder: knitr, rmarkdown
URL: https://github.com/ilovemaths/risdr,
        https://ilovemaths.github.io/risdr/
BugReports: https://github.com/ilovemaths/risdr/issues
Config/roxygen2/version: 8.1.0
RoxygenNote: 7.3.3
Repository: https://ilovemaths.r-universe.dev
Date/Publication: 2026-10-12 18:23:20 UTC
RemoteUrl: https://github.com/ilovemaths/risdr
RemoteRef: HEAD
RemoteSha: 9add706529ec156d1570ee3390c09db303c9e06a
NeedsCompilation: no
Packaged: 2026-10-12 23:11:17 UTC; root
Author: Kabir Olorede [aut, cre]
Maintainer: Kabir Olorede <kabirolorede@gmail.com>