title: pandas convert object type to float
body: <p>I got the a Dataframe with a column like this</p>
  
  <pre><code>2011-06-15    8 472,00
  2011-06-16    8 432,00
  2011-06-17    8 464,00
  2011-06-20    8 208,00
  2011-06-21    8 504,00
  Name: A.P.A, dtype: object
  </code></pre>
  
  <p>There's a space between in the number which I'd like to remove and turn the column into float, so that I may operate with it. </p>
  
  <p>Are there any neat ways in pandas to convert this?</p>