title: How do i plot facet plots in pandas
body: <p>This is what I have right now:</p>
  
  <pre><code>np.random.seed(1234)
  test = pd.DataFrame({'week': [1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2],
                       'score': np.random.uniform(0, 1, 12),
                       'type': [0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1],
                       'type2': [3, 3, 4, 4, 5, 5, 3, 3, 4, 4, 5, 5]})
  
  test.groupby(['week', 'type', 'type2']).agg('sum').unstack().plot(kind='bar')
  </code></pre>
  
  <p><img src="https://i.stack.imgur.com/vV1yc.png" alt="enter image description here"></p>
  
  <p>How do I plot facet based on 'type'? I want two different plots, one for type = 1 and another type = 2.</p>