The S language is often the vehicle of choice for research in statistical methodology, and R provides an Open Source route to participation in that activity. ) and graphical techniques, and is highly extensible. R provides a wide variety of statistical (linear and nonlinear modelling, classical statistical tests, time-series analysis, classification, clustering. There are some important differences, but much code written for S runs unaltered under R. R can be considered as a different implementation of S. It is a GNU project which is similar to the S language and environment which was developed at Bell Laboratories (formerly AT&T, now Lucent Technologies) by John Chambers and colleagues.
R is a language and environment for statistical computing and graphics.
