title: Selecting a specific row and column within pandas data array
body: <p>Hopefully this is a quick and simple one. Having looked through the entirity of the pandas.DataFrame documentation I can't quite seem to find exactly what I need. I have a DataFrame as:</p>
  
  <pre><code>           StartDate          End Date
  0   10/11/2014 00:00  10/12/2014 12:00
  1   12/01/2015 08:00  31/01/2015 07:59
  2   15/01/2015 00:00  19/02/2015 15:43
  </code></pre>
  
  <p>Say, for example, I want to access the value at <code>StartDate</code> column index value <code>2</code>...i.e, <code>15/01/2015 00:00</code> how is this achieved?</p>