As ‘root’ on your system perform the following four commands (Note: Version numbers may vary)
To install R
rpm -ivh http://mirror.chpc.utah.edu/pub/epel/5/x86_64/epel-release-5-4.noarch.rpm
yum install R
To install RStudio
rpm -Uvh rstudio-server-0.96.316-i686.rpm
Once you have done this (and assuming you don’t need to open any firewalls etc.) you can simply use the URL in your web browser.
The username and password will be the same as you would use to log into the server that R and RStudio are hosted on.
To update R as ‘root’ on your system simply type
yum update R
To update RStudio simply repeat the steps above – but changing the version numbers
You can also find other useful R resources at: http://www.r-bloggers.com