R in a Nutshell by Joseph Adler describes the R language (ArrLanguage).

http://oreilly.com/catalog/9780596801717    OreillyAndAssociates

Its an AnimalBook (in this case a bird).
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This is a very worthwhile addition to the material supplied with the program itself and explains some things which are missing from other documentation.  For example on a linux installation

 R -g TK &

will run R in a separate window instead of on the command line.

It also gives details of how to connect R to Microsoft Excell (Windows).

-- JohnFletcher
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CategoryBook