title: Clustered bar plot in gnuplot
body: <p>I have a simple result table which I want to plot as a clustered histogram plot in gnuplot. The data set has the category of content type of a webpage and the corresponding percentage share in two columns. I have this for two browsers. For example,</p>
  
  <pre><code>For IE,
      Content      Share
      Video         30%
      Audio         10%
      Flash         25%
      HTML          20%
      Javascript    15%
  
     For Chrome,
      Content      Share
      Video         20%
      Audio         5%
      Flash         35%
      HTML          30%
      Javascript    10%
  </code></pre>
  
  <p>Now I want to plot these two data together with the Content Type in the x-axis and the corresponding share on the y-axis with legends. How do I do this?</p>