R is a powerful open source software system for statistical computing. It has become immensely popular due to its intuitive programming language, built-in support for statistical procedures, and ability to produce beautiful graphics. R is extensible through a package system, and numerous contributions from its user community are freely available. R is available on Windows, Macintosh, and Linux platforms.  The Center for Interdisciplinary Research and Consulting (CIRC) has created the following videos to get you familiar with R. Click the link below for demo videos and associated files.