To cite package ‘RECA’ in publications use:

  Xiao N (2024). _RECA: Relevant Component Analysis for Supervised
  Distance Metric Learning_. R package version 1.7, ,
  <https://github.com/nanxstats/reca>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {RECA: Relevant Component Analysis for Supervised Distance Metric
Learning},
    author = {Nan Xiao},
    year = {2024},
    note = {R package version 1.7, },
    url = {https://github.com/nanxstats/reca},
  }