added R script used to processes data Signed-off-by: Martin Hawksey <m.hawksey@gmail.com>
added R script used to processes data
Signed-off-by: Martin Hawksey <393b6169886a883514935f11414784d7cf583757@gmail.com>

mhawksey/d3-twitter-compare,mhawksey/d3-twitter-compare