title: how i can put more lines in Line Plus Bar Chart using nvd3.js?
body: <p>i'm newbie in javascript and i want to try to visualize data using javascript especially d3.js. I found example graph what i want to build in nvd3.js (<a href="http://nvd3.org/examples/linePlusBar.html" rel="nofollow">http://nvd3.org/examples/linePlusBar.html</a>) this is line and bar chart combine in one place,,i try to modified it to same like (<a href="http://www.highcharts.com/demo/combo-multi-axes" rel="nofollow">http://www.highcharts.com/demo/combo-multi-axes</a>), but i still can not do that.</p>
  
  <p>My question is, how i can put more lines in in Line Plus Bar Chart using nvd3.js ?</p>
  
  <p>Thanks :)</p>