title: Multiple labels in Vowpal Wabbit
body: <p>Is there a way of specifying multiple labels for an example in the Vowpal Wabbit data format?</p>
  
  <p>I tried comma's and it doesn't complain, but I am not sure if it does what I expect...</p>
  
  <p>So e.g:</p>
  
  <pre><code>2,3 | f1:3 f3:23 
  2 | f1:2 f3:34
  </code></pre>
  
  <p>The first line is an example that is both in class 2 and in class 3.</p>
  
  <p>I do see some discussion on the <a href="http://groups.yahoo.com/neo/groups/vowpal_wabbit/conversations/messages/1419" rel="nofollow">vowpal mailing list</a> but I am not sure if anything has happened since.</p>
  
  <p>Tom</p>