R and S

R is an open source implementation of the S language ("GNU S").

R

Note that R is now a widely used standard software, backed by a strong and highly active user/developper community) that is now not only used as such but is more and more integrated with other software prokects. For instance both PASW Statistics (formerly SPSS Statistics) and Statistica let you use R as it were part of the software; GGobi can be used in tandem and many other open source programs use R to provide ressources they lack and/or add closely integrated features that R is lacking.

• The R Project.
• CRAN (The Comprehensive R Archive Network) R software download, a huge collection of rapidly growing R packages.
• Bioconductor open source and open development software project for the analysis and comprehension of genomic data
• RWeb On-line access to R (with graphics!)

S

S is the original software developed by Bell Labs (S and New S), S Plus (S+) is the commercial version.

• S-PLUS (S+ is now part of Tibco Spotfire [Tibco has acquired Insightful in 2008; before that it was own by MathSoft and still earlier by Statistical Sciences]. The company offers highly application oriented versions (Life sciences, finance, marketing research,...)
• S at Bell Labs
• The S System
• Info on recent developments
• Trellis Graph Software (Cleveland)

Packages (libraries)

As both S and R are base on the S languange, most S-macros run without modification in R, unless they use highly specific graphics functions or other specialized libraries.

• StatLib
• The Omega Project Omega is a joint project with the goal of providing a variety of open-source software for statistical applications, namely R and S

eugen.horber (at) politic.unige.ch