urceCode r">
<code class="sourceCode R"><span><span class="kw"><a href="https://rdrr.io/r/base/library.html" class="external-link">library</a></span><span class="op">(</span><span class="va"><a href="https://patchwork.data-imaginist.com" class="external-link">patchwork</a></span><span class="op">)</span> <span class="co"># for side-by-side plotting</span></span>
<span></span>
<span><span class="va">data</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/r/base/data.frame.html" cl