title: Train test split without using scikit learn
body: <p>I have a house price prediction dataset. I have to split the dataset into <code>train</code> and <code>test</code>.<br>
  I would like to know if it is possible to do this by using <code>numpy</code> or <code>scipy</code>?<br>
  I cannot use <code>scikit</code> learn at this moment.  </p>