'R has many functions for statistical analyses and graphics the latter are visualized immediately in their own window and can be saved in various formats (jpg, png, bmp, ps, pdf, emf, pictex, xfig the available formats mayĭepend on the operating system). R uses a command line interface, though several graphical user interfaces are available.
R's source code is freely available under the GNU General Public License, and pre-compiled binary versions are provided for Microsoft Windows, Mac OS X, and several Linux and other Unix-like operating systems.
R is widely used for statistical software development and data analysis, and has become a de-facto standard among statisticians for the development of statistical software.