To cite package ‘psdea’ in publications use:

Peng J (2026). psdea: Data Envelopment Analysis with User-Defined and Learned Reference Sets. R package version 1.0.0, https://CRAN.R-project.org/package=psdea.

Corresponding BibTeX entry:

  @Manual{,
    title = {psdea: Data Envelopment Analysis with User-Defined and
      Learned Reference Sets},
    author = {Jiachao Peng},
    year = {2026},
    note = {R package version 1.0.0},
    url = {https://CRAN.R-project.org/package=psdea},
  }