Install R 2.15 - linux mint

gistfile1.txt

cd /tmp

wget http://cran.r-project.org/src/base/R-2/R-2.15.2.tar.gz
# You can download latest R version from CRAN
# Go to http://cran.r-project.org/
# or Go & choose what u want:- http://cran.r-project.org/src/base/

# Untar
tar -xzf R-2.15.2.tar.gz
cd R-2.15.2

# need to build shared library (--enable-R-shlib)
sudo ./configure  --enable-R-shlib      # --prefix=...
sudo make
sudo make install