Installing R on Ubuntu

The following information is available from CRAN but for my convenience, I've collated the crux here for installing R on Ubuntu.

First find your closest mirror here. Currently I am in Japan, so mine is http://cran.ism.ac.jp/.

To find out which Ubuntu version you're using:

cat /etc/lsb-release 
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=11.10
DISTRIB_CODENAME=oneiric
DISTRIB_DESCRIPTION="Ubuntu 11.10"

Now edit the file /etc/apt/sources.list and add this line:

deb http://cran.ism.ac.jp//bin/linux/ubuntu oneiric/

sudo vi /etc/apt/sources.list
sudo apt-get update
sudo apt-get install r-base

If you are getting this error "The following signatures couldn't be verified because the public key is not available: NO_PUBKEY ###", run these commands in the terminal (taken from http://ubuntuforums.org/showthread.php?t=1694202)

gpg --keyserver keyserver.ubuntu.com --recv-key E084DAB9
gpg -a --export E084DAB9 | sudo apt-key add -

To install R packages, run R with sudo.

sudo R

And installing Bioconductor and some useful packages:

source("http://bioconductor.org/biocLite.R")
biocLite()
biocLite("edgeR")
biocLite("DESeq")
biocLite("baySeq")
biocLite("GO.db")
biocLite("GOstats")
biocLite("biomaRt")
biocLite("Ringo")
install.packages("snow")
biocLite("ShortRead")
biocLite("org.Hs.eg.db")
biocLite("goseq")