books.google.co.uk - R is the world's most popular programming language for statistical computing. Drug developers use it to evaluate clinical trials and determine which medications are safe and effective; archaeologists use it to sift through mounds of artifacts and track the spread of ancient civilizations; and actuaries...http://books.google.co.uk/books/about/The_Art_of_R_Programming.html?id=4jL3sfmP1l8C&utm_source=gb-gplus-shareThe Art of R Programming