R [ɑr]: a programming language and environment mostly used in statistics.
It offers many statistical and graphical techniques for data analyses. Free additional libraries called R packages help with more complexe tasks.
It is Open Source and offers rich functionality for developers to build their own tools and methods for analyzing data. On the other hand, R still has it’s problems when it comes to memory management, speed and efficiency.
You can write and run R in the command line, but it is often used within an integrated development environment (IDE). A popular IDE is RStudio.
R works on Windows, Macintosh, UNIX, and Linux platforms.