github/gitignore — pull request #1183 by Ironholds (2014-08-25 20:08:59+00:00)
Title: Add *.Rproj for RStudio users

RStudio - the only real R IDE, and an incredibly commonly used environment for R, particularly since it has git support - uses .Rproj files in projects, that follow the pattern projectname.Rproj. Adding *.Rproj to capture these and exclude them.