Install R and Rstudio on Windows and Mac computers

1. Install R (This is the main computing and programming engine). 
1.1 Go to:
http://mirrors.nics.utk.edu/cran/
1.2 Pick the right R version for your computer platform.
For Mac OS X users, you need to identify the version of your system and download the right one.


2. Install Rstudio (This is the user-friendly editor and environment to run R). 
http://www.rstudio.com/products/rstudio/download/
Note: Rstudio must be installed after installation of R.

Video: 
Install R and Rstudio on Windows computers
http://youtu.be/eD07NznguA4

Install R and Rstudio on Mac computers
http://youtu.be/Ywj6yNfc5nM