title: How to add space between bars in a grouped bar chart in a nvd3 grouped multibar chart?
body: <p>I'm trying to add some space/padding for a nvd3 multi bar chart. "groupSpacing" is not what I need, since it only adds space between groups. I'll need space between each bar inside group. I found one link in <a href="https://github.com/novus/nvd3/issues/476" rel="nofollow">github support</a>. Can you post any solution or tweak?</p>
  
  <p>I also found a <a href="http://bl.ocks.org/mbostock/3887051" rel="nofollow">d3 example of grouped bar chart</a>. Any help in this example also very helpful to me. </p>
  
  <p>Thanks.</p>