"https://rdrr.io/r/base/cat.html" class="external-link">cat</a></span><span class="op">(</span><span class="va">res</span><span class="op">$</span><span class="va">mirt.syntax</span><span class="op">)</span></span>
<span></span>
<span><span class="co">#-- compare estimation with smirt function</span></span>
<span><span class="co"># define Q-matrix</span></span>
<span><span class="va">I</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/r/base/nrow.html" class="external-link">ncol