R -- A language for data analysis and graphics<hr>
<a href="http://www.r-project.org">http://www.r-project.org</a><hr>
`GNU S' - A language and environment for statistical computing and
graphics. R is similar to the award-winning S system, 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, ...).

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, C, C++ and Fortran code can be linked and called at run time.
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