R is a language and environment for statistical computing and graphics. It is a GNU project which is similar to the S language and environment which was developed at Bell Laboratories (formerly AT&T, now Lucent Technologies) by John Chambers and colleagues. R can be considered as a different implementation of S. There are some important differences, but much code written for S runs unaltered under R.
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REvolution Computing has now made a public version of its commercial grade REvolution R program available for download from its website. REvolution R is REvolution Computing's distribution of the popular R statistical software, optimized for use in commercial environments. A key feature includes the use of powerful optimized libraries capable of boosting performance by a factor of 5 or 10 for commonly used operations.
