title: How to create quintile of variable in R
body: <p>Is it possible to bin a variable in to quintile (1/5th) using R. And select only the variables that fall in the 5th bin.</p>
  
  <ul>
  <li>As of now I am using the closest option which is quartile (.75) as there is not a function to do quintile. </li>
  </ul>
  
  <p>Any suggestions please. </p>