wn</th>
      <td><p>logical; if <code>TRUE</code> (default), stepwise procedure is used, otherwise single step procedure is used.</p></td>
    </tr>
    <tr>
      <th>bootdist</th>
      <td><p>distribution to be used for parametric bootstrap; either <code>normal</code> (default) or <code>multinomial</code>.</p></td>
    </tr>
    <tr>
      <th>R</th>
      <td><p>number of bootstrap replications. Default is 1000.</p></td>
    </tr>
    <tr>
      <th>indices</th>
      <td><p>vector of indices of <code>