title: Problems with Pandas corr() function
body: <p>Trying to get a correlation matrix in using pandas.DataFrame.corr() but for some reason it's only returning 1 column.
  <a href="https://i.stack.imgur.com/3Cwrl.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/3Cwrl.png" alt="enter image description here" /></a></p>