="va">res</span><span class="op">$</span><span class="va">mirt.model</span></span>
<span><span class="va">res</span><span class="op">$</span><span class="va">mirt.pars</span></span>
<span></span>
<span><span class="co">#******************</span></span>
<span><span class="co">#*** Model 4: 3-dimensional model with some parameter constraints</span></span>
<span><span class="va">lavmodel</span> <span class="op">&lt;-</span> <span class="st">"</span></span>
<span><span class="st">     # some equality constraint