 mu <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/rep.html" class="external-link">rep</a></span><span class="op">(</span><span class="fl">0</span>, <span class="fl">20</span><span class="op">)</span>,</span></span>
<span class="r-in"><span>                   Sigma <span class="op">=</span> <span class="va">main</span><span class="op">$</span><span class="va">cors</span><span class="op">)</span></span></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span 