title: Python 3: Subplots different even though using same data
body: <p>I'm using python 3 seaborn to generate the following subplots.</p>
  
  <pre><code>import numpy as np; np.random.seed(1)
  import seaborn as sns; sns.set()
  uniform_data = np.random.rand(500, 12)
  plt.subplot(2, 1, 1)
  ax = sns.heatmap(uniform_data)
  plt.subplot(2, 1, 2)
  ax = sns.heatmap(uniform_data)
  </code></pre>
  
  <p>Both subplots use the same data but yet give different plots. I don't understand why. </p>