===== R Statistical Language =====
==== Installation ====
=== Linux ===
yum install R

Download Rstudio Desktop from [[http://www.rstudio.com/|http://www.rstudio.com/]] and install via yum
For example, yum install rstudio-0.98.501-x86_64.rpm 

=== Windows ===
Download install files from [[http://cran.r-project.org/bin/windows/base/|http://cran.r-project.org/bin/windows/base/]] and install.

Install the "matrixStats" package using the RGui
Select <Packages><Install packages(s)...>
If this is the first time installing a package you will be asked to select CRAN mirror.
If ask for CRAN mirror select the closest, i.e. USA (OH)
From the list of packages select "matrixStats"
Answer yes to "Would you like to use a personal library instead".
Answer yes to the question about creating directory if asked.

==== Script Execution ====
=== Linux ===
Assuming that the script is file is name 'Appendix_A_Script', then execute using source("Apendix_A_Script")