title: Numpy max along axis
body: <p>Am I missing something here? I would expect that <code>np.max</code> in the following snippet would return <code>[0, 4]</code>...</p>
  <pre><code>&gt;&gt;&gt; a
  array([[1, 2],
         [0, 4]])
  
  &gt;&gt;&gt; np.max(a, axis=0)
  array([1, 4])
  </code></pre>
  <p>Thanks for any pointers.</p>