title: pandas: Using color in a scatter plot
body: <p>I have a pandas dataframe:</p>
  
  <pre><code>--------------------------------------
  |   field_0  |  field_1   | field_2  |
  --------------------------------------
  |     0      |   1.5      |  2.9     |
  --------------------------------------
  |     1      |   1.3      |  2.6     |
  --------------------------------------
  |       :                            |
  --------------------------------------
  |     1      |   2.1      |  3.2     |
  --------------------------------------
  |     0      |   1.1      |  2.1     |
  --------------------------------------      
  </code></pre>
  
  <p>I can create a scatter plot for field_1 vs. field_2 like below:</p>
  
  <pre><code>%matplotlib notebook
  import matplotlib.pyplot as plt
  import matplotlib
  matplotlib.style.use('ggplot')
  my_df.plot(x='field_1', y='field_2', kind = 'scatter')
  </code></pre>
  
  <p>However, I am wondering is it possible to include field_0 in the plot? So when field_0 = 0, the point is blue; when field_1 = 1, the point is red. </p>
  
  <p>Thanks!</p>