dt><dd><p>scoring metric used to evaluate the best model, multiple values can be provided.
               currently supports: auc, accuracy, mse, rmse, logloss, mae, f1, precision, recall</p></dd>
</dl>
    

    <h2 class="hasAnchor" id="examples"><a class="anchor" href="#examples"></a>Examples</h2>
    <pre class="examples"><div class='input'><span class='no'>rf</span> <span class='kw'>&lt;-</span> <span class='no'>RFTrainer</span>$<span class='fu'>new</span>()
<span class='no'>gst</span> <span class='kw'