 increase number of iterations in all models!</span></span>
<span></span>
<span><span class="va">N</span> <span class="op">&lt;-</span> <span class="fl">1000</span>    <span class="co"># number of persons</span></span>
<span><span class="va">I</span> <span class="op">&lt;-</span> <span class="fl">10</span>        <span class="co"># number of items</span></span>
<span><span class="va">theta0</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/r/stats/Normal.html" class="external-li