title: How to reverse the order of a dataframe in R
body: <p>I've endlessly looked for this and somehow nothing has solved this <em>simple</em> problem.</p>
  
  <p>I have a dataframe called Prices in which there are 4 columns, one of which is a list of historical dates - the other 3 are lists of prices for products.</p>
  
  <pre><code>1   10/10/2016  53.14   50.366  51.87
  2   07/10/2016  51.93   49.207  50.38
  3   06/10/2016  52.51   49.655  50.98
  4   05/10/2016  51.86   49.076  50.38
  5   04/10/2016  50.87   48.186  49.3
  6   03/10/2016  50.89   48.075  49.4
  7   30/09/2016  50.19   47.384  48.82
  8   29/09/2016  49.81   46.924  48.4
  9   28/09/2016  49.24   46.062  47.65
  10  27/09/2016  46.52   43.599  45.24
  </code></pre>
  
  <p>The list is 252 prices long. How can I have my output stored with the latest date at the bottom of the list and the corresponding prices listed with the latest prices at the bottom of the list?</p>