title: How to get a data frame into a graph, when dealing with words and numbers?
body: <p>This is my data frame</p>
  
  <pre><code>id   product   cost
  1    Milk       3 
  2    egg        2
  3    coffee     4
  4    tea        2
  5    sugar      3
  </code></pre>
  
  <p>I am trying to work out how to get the product and its' cost into a graph, my current issue is that it will not do it because the product column is not numeric.</p>
  
  <p>Thanks!</p>