title: Replace values in a numerical range
body: <p>Hi guys a very simple question. 
  How can I replace <code>values  &lt; 1.5</code> and  the <code>values  &gt; -1.5</code>  with <code>0</code> in a <code>data.frame</code>? 
  Should be "pipe" the best solution? </p>
  
  <p>Thanks a lot!</p>
  
  <p>E. </p>