install r on ubuntu 14.04

install.r.sh

#!/bin/bash

# source
# ubuntu readme : http://cran.r-project.org/bin/linux/ubuntu/README
# cran r mirrors : http://cran.r-project.org/mirrors.html

# add repository
sudo apt-add-repository "deb http://cran.gis-lab.info/bin/linux/ubuntu trusty/"

# import key
sudo gpg --keyserver keyserver.ubuntu.com --recv-key E084DAB9

# add key
sudo gpg -a --export E084DAB9 | sudo apt-key add -

# update package info
sudo apt-get update

# install r
sudo apt-get install r-base