><span><span class="fu">refit</span><span class="op">(</span><span class="va">object</span>, <span class="va">newresp</span>, <span class="va">...</span><span class="op">)</span></span>
<span></span>
<span><span class="co"># S3 method for class 'merMod'</span></span>
<span><span class="fu">refit</span><span class="op">(</span><span class="va">object</span>, newresp <span class="op">=</span> <span class="cn">NULL</span>, newweights <span class="op">=</span> <span class="cn">NULL</span>,</span>
<span>      re