What are R and Cran (•• )?
What are R ??? and CRAN ???? (´•?•`)? R is ‘GGNU S’, a freely available language and environment for statistical computing and graphics which provides a wide variety of statistical and graphical techniques: linear and nonlinear modelling, statistical tests, time series analysis, classification, clustering, etc.
How many R packages are there?
SeeSection “R packages” inR FAQ, for a complete list. There are thousands of contributed packages for R, written by many different authors. Someof these packages implement specialized statistical methods, others give access to data or hard-ware, and others are designed to complement textbooks.
What is a basic reference for R?
For R, the basic reference isThe New S Language: A Programming Environmentfor Data Analysis and Graphicsby Richard A. Becker, John M. Chambers and Allan R. Wilks.The new features of the 1991 release of S are covered inStatistical Models in Sedited by John M. Chambers and Trevor J. Hastie.
Where did the introduction to R come from?
This introduction to R is derived from an original set of notes describing the S andS-Plusenvironments written in 1990–2 by Bill Venables and David M. Smith when at the Universityof Adelaide. We have made a number of small changes to reflect differences between the R and S programs, and expanded some of the material.
The Comprehensive R Archive Network