times to repeat the analysis generating a random value for response and/or predictor variables.
If NULL, <code>n.intra</code> = 30</p></td>
    </tr>
    <tr>
      <th>n.tree</th>
      <td><p>Number of times to repeat the analysis with n different trees picked 
randomly in the multiPhylo file.
If NULL, <code>n.tree</code> = 2</p></td>
    </tr>
    <tr>
      <th>distrib</th>
      <td><p>A character string indicating which distribution to use to generate a random value for the response 
and/or predictor 