title: Error: could not find function "%>%"
body: <p>I'm running an example in R, going through the steps and everything is working so far except for this code produces an error:  </p>
  
  <pre><code> words &lt;- dtm %&gt;%
   as.matrix %&gt;%
   colnames %&gt;%
   (function(x) x[nchar(x) &lt; 20])
  </code></pre>
  
  <blockquote>
    <p>Error: could not find function "%>%"</p>
  </blockquote>
  
  <p>I don't understand what the benefit of using this special operator
  <code>%&gt;%</code> is, and any feedback would be great.</p>