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 Ben Bolker Göran Broström Saikat DebRoy Lyndon Drake Paul Gilbert Torsten Hothorn Robert King Kjetil Kjernsmo Philippe Lambert Uwe Ligges Jim Lindsey Patrick Lindsey Catherine Loader Gordon Maclean John Maindonald Duncan Murdoch Jens Oehlschaegel-Akiyoshi Steve Oncley Richard O'Keefe Hubert Palme Jose C. Pinheiro Martyn Plummer Jonathan Rougier Heiner Schwarte Bill Simpson Adrian Trapletti Terry Therneau Bill Venables Gregory R. Warnes Andreas Weingessel 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. Julian Harris and Wing Kwong (Tiki) Wan whilst at the University of Auckland assisted Ross Ihaka with the Macintosh port. 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.