h2>
    <div class="sourceCode"><pre class="sourceCode r"><code><span><span class="fu">smirt</span><span class="op">(</span><span class="va">dat</span>, <span class="va">Qmatrix</span>, irtmodel<span class="op">=</span><span class="st">"noncomp"</span>, est.b<span class="op">=</span><span class="cn">NULL</span>, est.a<span class="op">=</span><span class="cn">NULL</span>,</span>
<span>     est.c<span class="op">=</span><span class="cn">NULL</span>, est.d<span class="op">=</span><span class="cn">NULL</span>, 