_groups</th>
      <td><p>encoding of elements: list of groups to which elements 
of n-grams should be aggregated. Must have unique names.</p></td>
    </tr>
    <tr>
      <th>binarize</th>
      <td><p>logical indicating if n-grams should be binarized</p></td>
    </tr>
    </table>

    <h2 class="hasAnchor" id="value"><a class="anchor" href="#value"></a>Value</h2>

    <p>A <code>character</code> vector or matrix (if input is a matrix) 
containing degenerated n-grams.</p>

  </div>
  <div class="col-md-