
After you have downloaded RStudio, open the downloaded file and follow the on-screen instructions to install it. Installing Contributed R Packages in Mac OS Local R Packages, eolts, eolsonde, isfs Installing or Updating Packages with RStudio GeographicLib Geoid Models.


And now, print from more mobile devices, including Android. Under Installers for ALL Platforms, choose Mac OS X 10.6+ Next-generation Papercut print service brings easier set up on your Windows or Mac computer.After you have downloaded R, open the downloaded file and follow the on-screen instructions to install it.Click on R-3.1.0-snowleopard.pkg to download the installer.If you have any difficulty while installing the software, bring your laptop to the Help Desk in Clapp Library or email a description of the problem. Both R and RStudio are free and open source. The default interface for R on Macs is usually sufficient, though users who are used to another statistical software program, such as Stata, may prefer the familiar interface of R Studio.

I think Mac being Unix replaces the need for rtools. Does Xcode replace the need for Rtools 1. RStudio is a user interface for R that organizes the windows you see while using R. Here are some instructions from one of my R courses covering setting up command line tools for Mac.
