Witold Wiecek [cre, aut],
  Rachael Meager [aut],
  Brice Green [ctb] (loo_compare, many visuals),
  Danny Toomey [ctb] (many bug fixes),
  Trustees of Columbia University [cph] (package skeleton)

Jiawei Zhang [aut, cre],
  Jie Ding [aut],
  Yuhong Yang [aut]

Max Kuhn [aut, cre] (<https://orcid.org/0000-0003-2402-136X>),
  Posit Software, PBC [cph, fnd]

Ernest Guevarra [aut, cre, cph]
    (<https://orcid.org/0000-0002-4887-4415>)

Xin Gu [aut],
  Herbert Hoijtink [aut],
  Joris Mulder [aut],
  Caspar J van Lissa [aut, cre],
  Van Zundert Camiel [ctb],
  Jeff Jones [ctb],
  Niels Waller [ctb]

Anton Grafström, Jonathan Lisic, Wilmer Prentius

Jin Zhu [aut, cre] (<https://orcid.org/0000-0001-8550-5822>),
  Wenliang Pan [aut],
  Yuan Tian [aut],
  Weinan Xiao [aut],
  Chengfeng Liu [aut],
  Ruihuang Liu [aut],
  Yue Hu [aut],
  Hongtu Zhu [aut],
  Heping Zhang [aut],
  Xueqin Wang [aut] (<https://orcid.org/0000-0001-5205-9950>)

Jonathan Homola, Danielle Korman, Jacob Metz, Miguel Pereira, Mauricio Vela, and Jeff Gill <jgill5402@mac.com>

Alexander Rix [aut],
  Mike Kleinsasser [aut, cre],
  Yanyi Song [aut]

Saptarshi Chakraborty,
        Samuel W.K. Wong

Tom Bowling [aut, cre],
  Tim Fry [aut],
  Harry Alexander [ctb],
  Andrew Little [ctb],
  Mark Druffel [ctb]

Nikolaus Umlauf [aut, cre] (<https://orcid.org/0000-0003-2160-9803>),
  Nadja Klein [aut] (<https://orcid.org/0000-0002-5072-5347>),
  Achim Zeileis [aut] (<https://orcid.org/0000-0003-0918-3766>),
  Meike Koehler [ctb],
  Thorsten Simon [aut] (<https://orcid.org/0000-0002-3778-7738>),
  Stanislaus Stadlmann [ctb],
  Alexander Volkmann [ctb] (<https://orcid.org/0000-0001-5028-8098>)

Luis Osorio-Olvera [aut, cre] (<https://orcid.org/0000-0003-0701-5398>),
  Jorge Soberón [aut] (<https://orcid.org/0000-0003-2160-4148>)

Dan Rabosky, Mike Grundler, Pascal Title, Carlos Anderson, Jeff Shi,
    Joseph Brown, Huateng Huang, Jon Mitchell

Volker Schmid [aut, cre],
  Florian Geressen [ctb],
  Leonhard Held [ctb],
  Evi Rainer [ctb]

Weihao Li [aut, cre, cph] (<https://orcid.org/0000-0003-4959-106X>)