• CRAN (>8,000 packages) general data analysis \href{http://cran.at.r-project.org/}}
  • Bioconductor (>1,100 packages) bioscience data analysis \href{http://www.bioconductor.org/}}
  • Omegahat (>90 packages) programming interfaces \href{http://www.omegahat.org/}}