To cite package ‘pcpr’ in publications use:

  Chillrud L, Benavides J, Gibson E, Zhang J, Yan J, Wright J,
  Goldsmith J, Kioumourtzoglou M (2025). _pcpr: Principal Component
  Pursuit for Environmental Epidemiology_. R package version
  1.0.0.9000, , <https://github.com/columbia-prime/pcpr>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {pcpr: Principal Component Pursuit for Environmental Epidemiology},
    author = {Lawrence G. Chillrud and Jaime Benavides and Elizabeth A. Gibson and Junhui Zhang and Jingkai Yan and John N. Wright and Jeff Goldsmith and Marianthi-Anna Kioumourtzoglou},
    year = {2025},
    note = {R package version 1.0.0.9000, 
},
    url = {https://github.com/columbia-prime/pcpr},
  }