n for measuring the results. Defaults to NULL.</p></td>
    </tr>
    <tr>
      <th>exclude_variables</th>
      <td><p>A character vector; the variables from the data set to exclude. Defaults to NULL.</p></td>
    </tr>
    <tr>
      <th>categorical_variables</th>
      <td><p>A character vector; the variables that are categorical. Defaults to NULL.</p></td>
    </tr>
    <tr>
      <th>train_size</th>
      <td><p>A numeric vector of length one; specifies what proportion of the data should be used for t