">nrow</a></span><span class="op">(</span><span class="va">acuteInflammation</span><span class="op">$</span><span class="va">meta</span><span class="op">)</span></span>
<span><span class="co"># number of columns</span></span>
<span><span class="fu"><a href="https://rdrr.io/r/base/nrow.html" class="external-link">ncol</a></span><span class="op">(</span><span class="va">acuteInflammation</span><span class="op">$</span><span class="va">meta</span><span class="op">)</span></span>
<span><span class="co"># a subs