R is a programming language and environment for statistical computing and graphics. It provides a wide variety of statistical and graphical techniques, including linear and nonlinear modeling, classical statistical tests, time-series analysis, classification, clustering, and more. R is open source and is widely used by data scientists, statisticians, and researchers worldwide. One of the advantages of R is the extensive collection of packages available, which provide additional functionality and make it easier to perform complex analyses. R is also highly customizable and can be extended with user-written functions and packages.