If you have installed R in your Ubuntu and you need to some machine learning work on it, Rattle is recommended.
> install.packages(“RGtk2”)
>[……]
Install R-Rattle on Ubuntu12.04 64bit
June 24, 2013 Pro_R No comments R
Install R in Ubuntu 12.04 64 bit
1. Update:
To obtain the latest R packages, add an entry like
deb http:///bin/linux/ubuntu raring/
or
deb http:///bin/linux/ubuntu[……]