vel</a></span><span class="op">(</span><span class="va">data</span><span class="op">$</span><span class="va">sc14q02</span>, ref<span class="op">=</span><span class="st">"Not at all"</span><span class="op">)</span></span></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="co"># run with unconditional weights</span></span></span>
<span class="r-in"><span><span class="va">m1u</span> <span class="op">&lt;-</span> <span class="fu">mix</span><span class="op">(</span><span class=