R Project Contributors

The current R is the result of a collaborative effort with contributions from all over the world. R was initially written by Robert Gentleman and Ross Ihaka—also known as "R & R" of the Statistics Department of the University of Auckland. Since mid-1997 there has been a core group with write access to the R source, currently consisting of

plus Heiner Schwarte up to October 1999 and Guido Masarotto up to June 2003.

R would not be what it is today without the invaluable help of these people, who contributed by donating code, bug fixes and documentation:

Valerio Aimale, Thomas Baier, Roger Bivand, Ben Bolker, David Brahm, Göran Broström, Patrick Burns, Vince Carey, Saikat DebRoy, Brian D'Urso, Lyndon Drake, Dirk Eddelbuettel, John Fox, Paul Gilbert, Torsten Hothorn, Robert King, Kjetil Kjernsmo, Philippe Lambert, Jan de Leeuw, Jim Lindsey, Patrick Lindsey, Catherine Loader, Gordon Maclean, John Maindonald, David Meyer, Jens Oehlschägel, Steve Oncley, Richard O'Keefe, Hubert Palme, José C. Pinheiro, Anthony Rossini, Jonathan Rougier, Günther Sawitzki, Bill Simpson, Gordon Smyth, Adrian Trapletti, Terry Therneau, Bill Venables, Gregory R. Warnes, Andreas Weingessel, Morten Welinder, Simon Wood, and Achim Zeileis,

We have probably omitted some important names here because of incomplete record keeping. If we have overlooked you, please let us know and we'll update the list. Many more, too numerous to mention here, have contributed by sending bug reports and suggesting various improvements. Simon Davies whilst at the University of Auckland wrote the original version of glm(). Julian Harris and Wing Kwong (Tiki) Wan whilst at the University of Auckland assisted Ross Ihaka with the Macintosh port.

R was inspired by the S environment which has been principally developed by John Chambers, with substantial input from Douglas Bates, Rick Becker, Bill Cleveland, Trevor Hastie, Daryl Pregibon and Allan Wilks. A special debt is owed to John Chambers who has graciously contributed advice and encouragement in the early days of R and later became a member of the core team.