title: How to use color coding for intervals for scatter plot matrix in a python pandas code?
body: <pre><code>import numpy as np
  import matplotlib.pyplot as plt
  import pandas
  df = pandas.DataFrame(np.random.randn(1000,4 ), columns=['a', 'b', 'c', 'd'])
  pandas.tools.plotting.scatter_matrix(df, alpha=0.2)
  plt.show()
  </code></pre>
  
  <p>Is it possible to view a color coded form of the above result so that further analysis is possible, for example, for column a, values between 0-50 can be coded as red, 50-100 green and so on?</p>