rpy installation error.txt

chandank@PRINHYLTPHP0314:~/workspace/pandas-cookbook/cookbook$ sudo pip install -U rpy2
[sudo] password for chandank: 
Downloading/unpacking rpy2
  Downloading rpy2-2.3.10.tar.gz (187kB): 187kB downloaded
  Running setup.py (path:/tmp/pip_build_root/rpy2/setup.py) egg_info for package rpy2
    
    sh: 1: R: not found
    Error: Tried to guess R's HOME but no R command in the PATH.
    Complete output from command python setup.py egg_info:
    running egg_info

creating pip-egg-info/rpy2.egg-info

writing pip-egg-info/rpy2.egg-info/PKG-INFO

writing top-level names to pip-egg-info/rpy2.egg-info/top_level.txt

writing dependency_links to pip-egg-info/rpy2.egg-info/dependency_links.txt

writing manifest file 'pip-egg-info/rpy2.egg-info/SOURCES.txt'

warning: manifest_maker: standard file '-c' not found



sh: 1: R: not found

Error: Tried to guess R's HOME but no R command in the PATH.

----------------------------------------
Cleaning up...
Command python setup.py egg_info failed with error code 1 in /tmp/pip_build_root/rpy2
Storing debug log for failure in /home/chandank/.pip/pip.log