pan class="dv">4</span>,
               <span class="dt">n_iter =</span> <span class="dv">5</span>)</code></pre></div>
</div>
</div>
<div id="xgboost" class="section level3">
<h3 class="hasAnchor">
<a href="#xgboost" class="anchor"></a>XGboost</h3>
<p>For XGboost, this package supports hold-out tuning (<code><a href="../reference/xgb_opt.html">xgb_opt()</a></code>) and cross-validation tuning(<code><a href="../reference/xgb_cv_opt.html">xgb_cv_opt()</a></code>).</p>
<p>In XGboost functions, you must specify