title: Google DataTable: Return a column object
body: <p>I am using the google datatable object to create google visualizations. I would like to read a datatable and then create multiple subtables from that original object. </p>
  
  <p>According to the google documentation there is not a method to "getColumn." </p>
  
  <p><a href="http://code.google.com/apis/visualization/documentation/reference.html#DataTable" rel="nofollow">http://code.google.com/apis/visualization/documentation/reference.html#DataTable</a></p>
  
  <p>I know there is a cols property but I am not sure exactly what this property is used for. Does anyone have any ideas about how to do this, and explain what the cols property is used for?</p>