formula</th>
      <td><p>xspliner-specific formula object. Check vignette("xspliner") for more details.</p></td>
    </tr>
    <tr>
      <th>model</th>
      <td><p>Predictive model. Basic model used for extracting predictors transformation.</p></td>
    </tr>
    <tr>
      <th>data</th>
      <td><p>Training data of <code>model</code>.</p></td>
    </tr>
    <tr>
      <th>xf_opts</th>
      <td><p>Formula parameters used for factor variable transformations inherited from factorMerger package.</p></td>
