title: Implementing Step Line Chart in Dynamic Data Display
body: <p>I would like to have a step line chart like this one, using <a href="http://dynamicdatadisplay.codeplex.com/" rel="nofollow noreferrer">D3</a></p>
  
  <p><img src="https://i.stack.imgur.com/NuQXS.png" alt="enter image description here"></p>
  
  <p>I think it is not available in D3. I guess I will have to code it as an add-in. <br>
  However I really do not know where to start from, so any help is welcome.</p>