Authors of R. 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 Douglas Bates John Chambers Peter Dalgaard Robert Gentleman Kurt Hornik Ross Ihaka Tomas Kalibera Michael Lawrence Friedrich Leisch Uwe Ligges Thomas Lumley Martin Maechler Sebastian Meyer Paul Murrell Martyn Plummer Brian Ripley Deepayan Sarkar Duncan Temple Lang Luke Tierney Simon Urbanek plus Heiner Schwarte up to October 1999, Guido Masarotto up to June 2003, Stefano Iacus up to July 2014, Seth Falcon up to August 2015, Duncan Murdoch up to September 2017, and Martin Morgan up to June 2021. Current R-core members can be contacted via email to R-project.org with name made up by replacing spaces by dots in the name listed above. (The authors of code from other projects included in the R distribution are listed in the COPYRIGHTS file.)