title: Flot to plot bar graph
body: <p>I'm trying to plot the following chart using Flot for JQUery:</p>
  
  <p><img src="https://i.stack.imgur.com/piFDe.png" alt="enter image description here"></p>
  
  <p>Where A,B,C and D are marketing efforts...</p>
  
  <p>I have this example code:</p>
  
  <pre><code>var data = [ ["January", 10,80], ["February", 8], ["March", 4], ["April", 13], ["May", 17], ["June", 9] ];
  
      $.plot("#catchart", [ data ], {
          series: {
              bars: {
                  show: true,
                  barWidth: 0.6,
                  align: "center"
              }
          },
          xaxis: {
              mode: "categories",
              tickLength: 0
          }
      });
  </code></pre>
  
  <p>But this only plots one column per category. How can I get two columns "paired" or together per category?</p>