l from models,
'engine' - name of the model from models, other metrics columns.</p>
    </div>

    <div id="ref-examples">
    <h2>Examples</h2>
    <div class="sourceCode"><pre class="sourceCode r"><code><span class="r-in"><span><span class="va">iris_bin</span>          <span class="op">&lt;-</span> <span class="va">iris</span><span class="op">[</span><span class="fl">1</span><span class="op">:</span><span class="fl">100</span>, <span class="op">]</span></span></span>
<span class="r-in"><span><span