title: seaborn exclude columns in clustering
body: <p>I have a dataset containing 200 rows and 97 columns, which I have stored as a pandas dataframe.</p>
  
  <p>I am plotting this dataframe with seaborn, using clustermap, like this:</p>
  
  <pre><code>from matplotlib.colors import ListedColormap
  
  sns.set(rc={'axes.facecolor':'white', 'figure.facecolor':'white'})
  cmap=ListedColormap(["white", "lightgray", "blue", "red", "cornflowerblue", "darkcyan", "pink", "violet"])
  g = sns.clustermap(df,method="complete", metric="hamming",row_cluster=True, 
  col_cluster=False, figsize=(10, 20), cmap=cmap)
  plt.setp(g.ax_heatmap.get_yticklabels(), rotation=0) 
  plt.show()
  </code></pre>
  
  <p>However, I have just realized that I would like to plot it just like this, but I do not want the two first columns of my data frame to be included in the distance calculations.</p>
  
  <p>Suggestions of how I can accomplish this?</p>
  
  <p>Thanks!</p>