title: How to increase image size of pandas.DataFrame.plot
body: <p>How can I modify the size of the output image of the function <code>pandas.DataFrame.plot</code>?</p>
  <p>I tried:</p>
  <p><code>plt.figure (figsize=(10,5))</code></p>
  <p>and</p>
  <p><code>%matplotlib notebook</code></p>
  <p>but none of them work.</p>