title: View data in graph from rails
body: <p>I have 3 sections section1, section2, section3, and each section has 3 subsection correct,incorrect and wrong and each one of then again has 3 Subsections H,M,L like this in rails.</p>
  
  <pre><code> {"section1"=&gt;{"correct"=&gt;{"h"=&gt;"2", "m"=&gt;"4", "l"=&gt;"6"}, 
  "wrong"=&gt;{"h"=&gt;"7", "m"=&gt;"6", "l"=&gt;"7"}, "blank"=&gt;{"h"=&gt;"5", 
  "m"=&gt;"7", "l"=&gt;"9"}}, "section2"=&gt;{"correct"=&gt;
  {"h"=&gt;"3", "m"=&gt;"1", "l"=&gt;"2"}, "wrong"=&gt;{"h"=&gt;"2", "m"=&gt;"2",
  "l"=&gt;"2"}, "blank"=&gt;{"h"=&gt;"4", "m"=&gt;"2", "l"=&gt;"4"}}, "section3"=&gt;
  {"correct"=&gt;{"h"=&gt;"3", "m"=&gt;"2", "l"=&gt;"4"}, "wrong"=&gt;{"h"=&gt;"4",
  "m"=&gt;"4", "l"=&gt;"6"}, "blank"=&gt;{"h"=&gt;"6", "m"=&gt;"7", "l"=&gt;"5"}}} 
  </code></pre>
  
  <p>i want to show about representation in graph either using d3.js or google charts and i have no clue how to to that, can someone please suggest a way of doing this.
  thanks in advance.</p>