title: Memory Error in Jupyter Notebook
body: <p>I am running a Jupyter Notebook but I run into a memory error when I get to this line:</p>
  
  <p><code>X_train, X_test, y_train, y_test = train_test_split(X, y, random_state=42, test_size=0.1)</code></p>
  
  <p>The <code>train_test_split</code> function is from sklearn. If I shut down all processes except for the notebook it gets further through the program but still throws a Memory Error before completing the program. I am running 64 bit Python and when I run <code>free -m</code> I get the following output:</p>
  
  <p><code>
                total        used        free      shared  buff/cache   available
  Mem:           7877        2318        3925         512        1633        4719
  Swap:           255           6         249
  </code></p>
  
  <p>The data set is only 2.5 MB so I don't think I should be getting a Memory Error and I'm not sure where to go from here.</p>