I think that the Bioconductor project (http://www.bioconductor.org/ http://www.bioconductor.org/) has also been a big part of R adoption as it has produced a co

I think that the Bioconductor project (http://www.bioconductor.org/ http://www.bioconductor.org/) has also been a big part of R adoption as it has produced a core of well and consistently documented libraries for importing, managing and analyzing biological data that is not really matched anywhere else. R co-creator Robert Gentalman was/is a big driving force in that so of course it is in R.