>]</span> <span class="op">*</span> <span class="va">Q</span><span class="op">[</span><span class="va">ii</span>,<span class="fl">2</span><span class="op">]</span> <span class="op">-</span> <span class="va">b</span><span class="op">[</span><span class="va">ii</span>,<span class="fl">2</span><span class="op">]</span> <span class="op">)</span></span>
<span>    <span class="co"># non-compensatory model</span></span>
<span>    <span class="va">nco1</span> <span class="op">&lt;-</span> <span class="op">(</span> 