title: Create a grouped bar chart with multiple measures by color
body: <p>I'd like to create a grouped bar chart with multiple measures by color. I have the following measures: </p>
  
  <pre><code>Clicks
  Impressions
  Revenue
  Profit
  </code></pre>
  
  <p>I have a total of 2 web sites that I am collecting data from, so I'd like to have a different color for each measure and the columns to be side-by-side. Also, I'd like for them to be separated by site as well. </p>
  
  <p>I see the stacked bar columns, but that's not the way I want to visualize this. Anybody have any ideas? </p>