title: How to save a figure generated from missingno (python) to visualize missing values?
body: <p>I want to save the figure generated from missingno package. The plot is generated by <code>msno.matrix(df)</code>:</p>
  
  <p><a href="https://i.stack.imgur.com/2YmqC.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/2YmqC.png" alt="enter image description here"></a></p>
  
  <p>I tried:</p>
  
  <pre><code>fig = msno.matrix(df)
  fig.save_fig('plot.png')
  </code></pre>
  
  <p>but it doesn't work. I received the following message:</p>
  
  <blockquote>
    <p>AttributeError: 'AxesSubplot' object has no attribute 'savefig'</p>
  </blockquote>