title: Colouring different group data in boxplot using r
body: <p><a href="https://stackoverflow.com/questions/15060036/how-to-put-x-axis-values">How to put x-axis values</a></p>
  
  <p>The Box-plot in the link, I want to display different background colour for example: 2002-2004 - in one group, 2005-2007 in another group while from 2008-2011 in another group. All groups could be displayed on different background colour with description of legend or notes at bottom on graphs. </p>
  
  <p>How can I display those group boxplots in different colours (each group boxplot should be in same colour)? </p>
  
  <p>Many thanks in advance.</p>