R is a language and environment for statistical computing and graphics. It is similar to S, which was developed at Bell Laboratories by John Chambers et al. It provides a wide variety of statistical and graphical techniques (linear and nonlinear modelling, statistical tests, time series analysis, classification, clustering, etc.). R is designed as a true computer language with control-flow constructions for iteration and alternation, and it allows users to add additional functionality by defining new functions. For computationally intensive tasks, Fortran and C code can be linked and called at run time.
License: GNU General Public License (GPL)
Changes:
This is a maintenance release and fixes a number of mostly minor bugs and platform issues, as well as a couple of major problems. The most important issues were save-to-postscript on Windows, a Tcl/Tk event loop with X11, and a build issue on recent versions of Mac OS X.