span><span class="fu">::</span><span class="fu">smirt</span><span class="op">(</span> <span class="va">dat</span>, Qmatrix<span class="op">=</span><span class="va">Qmatrix</span>, irtmodel<span class="op">=</span><span class="st">"comp"</span>, est.a<span class="op">=</span><span class="st">"2PL"</span>,</span>
<span>             variance.fixed<span class="op">=</span><span class="va">variance.fixed</span>, qmcnodes<span class="op">=</span><span class="fl">1000</span>, maxiter<span class="op">=</span><span 