 class="op">=</span> <span class="st">"lightgreen"</span><span class="op">)</span></span></span>
<span class="r-plt img"><img src="Simpson-2.png" alt="" width="700" height="433"></span>
<span class="r-in"><span><span class="kw">if</span> <span class="op">(</span><span class="cn">FALSE</span><span class="op">)</span> <span class="op">{</span></span></span>
<span class="r-in"><span><span class="kw"><a href="https://rdrr.io/r/base/library.html" class="external-link">library</a></span><span class="op">(</span><