R (programming language)

R is a programming language and free software environment for statistical computing and graphics that is 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.

Polls, surveys of data miners, and studies of scholarly literature databases show that R's popularity has increased substantially in recent years. As of June 2018, R ranks 10th in the TIOBE index, a measure of popularity of programming languages.R is a GNU package. The source code for the R software environment is written primarily in C, Fortran, and R. R is freely available under the GNU General Public License, and pre-compiled binary versions are provided for various operating systems. While R has a command line interface, there are several graphical front-ends, most notably RStudio and RStudio Server, which are the only GUIs developed by the R Foundation. Integrated development environments are available.