Thomas J. Fisher [aut, cre] (ORCID:
    <https://orcid.org/0000-0001-5885-7646>),
  Colin M. Gallagher [aut]

Aristidis K. Nikoloulopoulos [aut, cre],
  Harry Joe [aut]

Michael Jahn [aut, cre] (ORCID:
    <https://orcid.org/0000-0002-3913-153X>),
  David Leslie [aut],
  Ahmadou Dicko [aut] (ORCID: <https://orcid.org/0000-0002-9654-7582>),
  Dunipace Eric [aut] (ORCID: <https://orcid.org/0000-0001-8909-213X>),
  Paul Murrell [aut, cph] (ORCID:
    <https://orcid.org/0000-0002-3224-8858>)

Kathleen M. Coburn [aut, cre],
  Jack L. Vevea [aut]

Josh Pasek [aut, cre] (ORCID: <https://orcid.org/0000-0001-6099-6119>),
  Alex Tahk [ctb] (ORCID: <https://orcid.org/0000-0001-7895-9420>),
  Gene Culter [ctb],
  Marcus Schwemmle [ctb],
  Some code modified from R-core [ctb]

Tianchen Xu [aut, cre] (ORCID: <https://orcid.org/0000-0002-0102-7630>),
  Chih-Chung Chang [ctb, cph] (libsvm C++-code),
  Chih-Chen Lin [ctb, cph] (libsvm C++-code),
  Ming-Wei Chang [ctb, cph] (libsvm C++-code),
  Hsuan-Tien Lin [ctb, cph] (libsvm C++-code),
  Ming-Hen Tsai [ctb, cph] (libsvm C++-code),
  Chia-Hua Ho [ctb, cph] (libsvm C++-code),
  Hsiang-Fu Yu [ctb, cph] (libsvm C++-code),
  David Meyer [ctb],
  Evgenia Dimitriadou [ctb],
  Kurt Hornik [ctb],
  Andreas Weingessel [ctb],
  Friedrich Leisch [ctb]

Rob Hyndman [aut, cre, cph] (ORCID:
    <https://orcid.org/0000-0002-2140-5352>),
  RStudio [cph]

Emmanuel Sikali [pdr],
  Paul Bailey [aut, cre],
  Blue Webb [aut],
  Claire Kelley [aut],
  Trang Nguyen [aut],
  Huade Huo [aut],
  Steve Walker [cph] (lme4pureR PIRLS function),
  Doug Bates [cph] (lme4pureR PIRLS function),
  Eric Buehler [ctb],
  Christian Christrup Kjeldsen [ctb]

Karthik Ram [aut, cre] (ORCID: <https://orcid.org/0000-0002-0233-1757>),
  Hadley Wickham [aut],
  Clark Richards [ctb],
  Aaron Baggett [ctb]

Paul McKeigue [aut] (ORCID: <https://orcid.org/0000-0002-5217-1034>),
  Marco Colombo [ctb, cre] (ORCID:
    <https://orcid.org/0000-0001-6672-0623>)

Tim Ginker [aut, cre, cph] (ORCID:
    <https://orcid.org/0000-0002-7138-5417>)