title: Check if values are > 0 in a DataFrame
body: <p>I have this dataframe :</p>
  <pre><code>d =pd.DataFrame({'Values': [4, 5, 56, 5, 6, 35]})
  </code></pre>
  <p>And I want to print <code>True</code> if the last 3 values are <code>&gt;0</code></p>
  <p>This is what I've done</p>
  <pre><code>d[-3:]&gt;0
  </code></pre>
  <p>And I got</p>
  <pre><code>   Values
  3   True
  4   True
  5   True
  </code></pre>
  <p>But this is not exactly what I want. I want to check the last 3 value and if they are all &gt;0 then print True otherwise print False.</p>
  <p>Thank you for the help</p>