Submit list for new spells

["Sergey A. Lipnevich" <sergeyli AT pisem.net>]

http://bugs.sourcemage.org/show_bug.cgi?id=613

I'm telling you guys, I deeply regret not knowing about R when I was 
working on my thesis. It helped my wife a lot though, so let me proudly 
introduce the R spell (see http://www.r-project.org/ for more 
information), an impressive software product of scientific community. 
Official description:

R is "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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