span><span class="op">)</span><span class="op">*</span><span class="op">(</span><span class="fl">1</span><span class="op">-</span><span class="fu"><a href="https://rdrr.io/r/base/mean.html" class="external-link">mean</a></span><span class="op">(</span><span class="va">x</span><span class="op">)</span><span class="op">)</span></span></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="fu">query_model</span><span class="op">(</span></span></span>
<span class="r-in"><span>  <sp