Olorede KO (2026). risdr: Regularised and Information-Theoretic Sufficient Dimension Reduction. doi:10.32614/CRAN.package.risdr. R package version 0.4.0, https://CRAN.R-project.org/package=risdr.

Olorede KO, Yahya WB (2019). “A New Covariance Estimator for Sufficient Dimension Reduction in High-Dimensional and Undersized Sample Problems.” doi:10.48550/arXiv.1909.13017. arXiv:1909.13017 [stat.ME], https://arxiv.org/abs/1909.13017.

The first public development release, risdr 0.3.0, is archived at https://doi.org/10.5281/zenodo.21418002. The first CRAN release, risdr 0.3.1, is archived at https://doi.org/10.5281/zenodo.21728851. The Zenodo concept DOI for all versions is https://doi.org/10.5281/zenodo.21728850.

Corresponding BibTeX entries:

  @Manual{,
    title = {risdr: Regularised and Information-Theoretic Sufficient
      Dimension Reduction},
    author = {Kabir Opeyemi Olorede},
    year = {2026},
    doi = {10.32614/CRAN.package.risdr},
    note = {R package version 0.4.0},
    url = {https://CRAN.R-project.org/package=risdr},
  }

  @Misc{,
    title = {A New Covariance Estimator for Sufficient Dimension
      Reduction in High-Dimensional and Undersized Sample Problems},
    author = {Kabir Opeyemi Olorede and Waheed Babatunde Yahya},
    year = {2019},
    note = {arXiv:1909.13017 [stat.ME]},
    doi = {10.48550/arXiv.1909.13017},
    url = {https://arxiv.org/abs/1909.13017},
  }