is a programming
language and software environment for statistical computing and graphics supported by the R
Foundation for Statistical Computing. The R
language is widely used among statisticians and data miners for developing statistical software and data analysis.
With interest in the language growing, as shown on language popularity indexes such as TIobe, PyPL, and Redmonk, R first appeared in the 1990s and has served as an implementation of the S statistical programming language. Notes Roger Peng, an 18-year R programming veteran who teaches R both at the university and on the Coursera online platform, "R is the most popular language used in the field of statistics."