R Reference Card by Tom Short, EPRI PEAC, tshort@epri-peac.com 2004-11-07 Granted to the public domain. See www.Rpad.org for the source and latest version. Includes material from R for Beginners by Emmanuel Paradis (with permission). Getting help Most R functions have online documentation. help(topic) documentation on topic ?topic id. help.search("topic") search the help system apropos("topic") t