t">"purple"</span>, alpha <span class="op">=</span> <span class="fl">0.2</span><span class="op">)</span></span></code></pre></div>
<p><img src="advanced_plotting_files/figure-html/unnamed-chunk-12-1.png" width="672" style="display: block; margin: auto;"></p>
<p>We can even do more than 1 convex hull to fully cover e.g. 2 standard
deviations of the source area. This might be useful for identifying
rogue mixture points.</p>
<div class="sourceCode" id="cb15"><pre class="downlit sourceCode r">
<code class="sou