 class="fu"><a href="https://rdrr.io/r/stats/cor.html" class="external-link">var</a></span><span class="op">(</span><span class="va">x</span>, na.rm<span class="op">=</span><span class="cn">TRUE</span><span class="op">)</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>, na.rm<span class="op">=</span><span class="cn">TRUE</span><span class="op">)</span><span class="op">)</span><spa