fit"></a></dt>
<dd><p>an <span style="R">R</span> object of class <code>merMod</code>.</p></dd>

  <dt id="arg-formula">formula<a class="anchor" aria-label="anchor" href="#arg-formula"></a></dt>
<dd><p>in the case of <code>model.frame</code>, a
    <code>merMod</code> object.</p></dd>

  <dt id="arg-refit">refit<a class="anchor" aria-label="anchor" href="#arg-refit"></a></dt>
<dd><p>logical indicating if objects of class <code>lmerMod</code> should be
    refitted with ML before comparing models. The defaul