See also

• The R Project for Statistical Computing web page at http://www.r-project.org/
• Visit the RStudio home page at http://www.rstudio.com/
• Refer to the R Tutorial at http://www.cyclismo.org/tutorial/R/
• A comprehensive guide to R at http://www.statmethods.net/about/sitemap.html
• Refer to the plyr reference manual at http://cran.r-project.org/web/packages/plyr/plyr.pdf
• Refer to the ggplot2 reference manual at http://cran.r-project.org/web/packages/ggplot2/ggplot2.pdf
• Visit Dr. Wickham's home page http://had.co.nz/