title: dc.js - how to create a row chart from multiple columns
body: <p>I need to create a rowchart in dc.js with inputs from multiple columns in a csv. So i need to map a column to each row and each columns total number to the row value.
  There may be an obvious solution to this but i cant seem to find any examples.
  many thanks
  S</p>
  
  <p>update:
  Here's a quick sketch. Apologies for the standard<br>
  Row chart;<br>
  column1 ----------------- 64 (total of column 1)<br>
  column2 ------- 35 (total of column 2)<br>
  column3 ------------ 45 (total of column 3)  </p>