===== Install R 2.15 from Source =====

This guide documentation howto install R version 2.15 from Source into your
home directory under the $HOME/local folder. This guide follows on for the
install GCC 4.7.1, install Python 2.7.3 and install Octave 3.6.3 from source
guides. ie
  $ gcc -v 
  ...
  gcc version 4.7.1 (GCC)
  $ python -V
  Python 2.7.3
  $ octave -v
  GNU Octave, version 3.6.3
  ...

The build working directory is going to be under the /tmp/$USER/R_build folder
on the login node. To begin, lets download R's source code and read the
provided install instructions.
  $ mkdir -p  /tmp/$USER/R_build
  $ cd /tmp/$USER/R_build
  $ wget -c http://cran.mirror.ac.za/src/base/R-2/R-2.15.1.tar.gz
  $ tar -xf R-2.15.1.tar.gz
  $ cd R-2.15.1
  $ less INSTALL

It also recommended that you read the [[http://cran.r-project.org/doc/manuals/R-admin.html | manual ]].


==== Configuration ====

  $ mkdir /tmp/$USER/R_build/R-2.15.1/BUILD
  $ cd /tmp/$USER/R_build/R-2.15.1/BUILD
  $ ../configure --help | less
  $ ../configure --prefix=$HOME/local --libdir=$HOME/local/lib64 

hmmm, if openMP cause problems, reconfigure with --disable-openmp flag.

==== Make it ====

  $ screen 
  $ make > make.build 2>&1
    ctrl-a crtl-d
  $ tail -f make.build

Make took 20 minutes to complete when this guide was written.

==== Testing ====

  $ make check

Testing took 5 minutes to complete, and everything should be OK.

==== Installation ====

  $ make install

return to your home directory then check and 
  $ cd ~
  $ R
  
  R version 2.15.1 (2012-06-22) -- "Roasted Marshmallows"
  ....
whala

Remember to clean up after yourself.
  $ rm -r  /tmp/$USER/R_build

==== Installing packages ====

from inside the R shell, just
  R install.packages($PACKAGE)