To cite package ‘RECA’ in publications use:

Xiao N (2025). RECA: Relevant Component Analysis for Supervised Distance Metric Learning. R package version 1.7.1, https://github.com/nanxstats/reca.

Corresponding BibTeX entry:

  @Manual{,
    title = {RECA: Relevant Component Analysis for Supervised Distance
      Metric Learning},
    author = {Nan Xiao},
    year = {2025},
    note = {R package version 1.7.1},
    url = {https://github.com/nanxstats/reca},
  }