Introduction to R and RStudio Jeff Witmer 9 March 2016 R is A software package for statistical computing and graphics A collection of 6,700 packages (as of June 2015, so more now) A (not ideal) programming language A work environment Widely used Powerful Free Some history S was developed at Bell Labs, starting in the 1970s R was created in the 1990s by Ross Ihaka and Robert Gentleman R was based on S, with code written in C S largely was used to make good graphs – not an easy thing