title: Can't get Dashing to display bar and line on same Rickshaw graph
body: <p>I'm trying to use <a href="https://gist.github.com/jwalton/6614023" rel="nofollow">this widget</a> to display 3 sets of data. the first set should be shown as a bar chart, and the rest can be displayed as lines on the chart.</p>
  
  <p>From what I've read, Rickshaw Graphs should be able to do this by using the 'multi' renderer but I can't get that render to work at all.</p>
  
  <p>Here is the ruby Array data object I'm sending, formatted to make it more readable:</p>
  
  <pre><code>iterationData:
      [
          {
              :name=&gt;"Delivered", 
              :renderer=&gt;"bar", 
              :data=&gt; [
                  {:x=&gt;1, :y=&gt;0}, 
                  {:x=&gt;2, :y=&gt;4}, 
                  {:x=&gt;3, :y=&gt;4}, 
                  {:x=&gt;4, :y=&gt;11}
              ]
          }, 
          {
              :name=&gt;"Estimated", 
              :renderer=&gt;"line", 
              :data=&gt; [
                  {:x=&gt;1, :y=&gt;2.7}, 
                  {:x=&gt;2, :y=&gt;5.4}, 
                  {:x=&gt;3, :y=&gt;8.10}, 
                  {:x=&gt;4, :y=&gt;10.8}, 
                  {:x=&gt;5, :y=&gt;13.5}, 
                  {:x=&gt;6, :y=&gt;16.2}, 
                  {:x=&gt;7, :y=&gt;18.9}, 
                  {:x=&gt;8, :y=&gt;21.59},
                  {:x=&gt;9, :y=&gt;24.29}, 
                  {:x=&gt;10, :y=&gt;26.99}
              ]
          }, 
          {
              :name=&gt;"Outlook", 
              :renderer=&gt;"line", 
              :data=&gt; [
                  {:x=&gt;1, :y=&gt;2.75}, 
                  {:x=&gt;2, :y=&gt;5.5}, 
                  {:x=&gt;3, :y=&gt;8.25}, 
                  {:x=&gt;4, :y=&gt;11.0}, 
                  {:x=&gt;5, :y=&gt;13.75}, 
                  {:x=&gt;6, :y=&gt;16.5}, 
                  {:x=&gt;7, :y=&gt;19.25}, 
                  {:x=&gt;8, :y=&gt;22.0}, 
                  {:x=&gt;9, :y=&gt;24.75}, 
                  {:x=&gt;10, :y=&gt;27.5}
              ]
          }
      ]
  </code></pre>
  
  <p>and here is my calls to show the graph and to send data to the graph:</p>
  
  <p>send_event in the ruby job:</p>
  
  <pre><code>send_event("#{projectID}-burnup-chart", {:series =&gt; iterationData})
  </code></pre>
  
  <p>dashboard.erb code: </p>
  
  <pre><code>&lt;div data-id="23405488441-burnup-chart" data-view="Rickshawgraph" style="background-color:#ff9618" data-legend=true data-unstack=true data-renderer="bar" data-color-scheme="compliment" data-max="40"&gt;&lt;/div&gt;
  </code></pre>
  
  <p>This just displays a blank widget with an orange background. The graph hasn't rendered at all. Can anyone suggest how I might achieve this? Or has anyone used a different widget to create a working burn up chart <a href="http://scrumage.com/wp-content/uploads/BurnUp.png" rel="nofollow">like this</a> that they might be able to suggest?</p>