</span><span class="op">(</span><span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="fl">0.86447943</span>, <span class="fl">0.67078879</span>, <span class="fl">0.322681</span>, <span class="fl">0.45087394</span><span class="op">)</span>,<span class="fl">2</span>,<span class="fl">2</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="va">xcovar</span> <span class="op">&lt;-</span></span></span>
<span c