t</dt>
<dd>
<p>While we provide all the necessary code, we limit our discussion of
the code (functions, arguments, syntax, etc.) to meet the constraint of
providing a brief, yet complete, case study. Such discussions are left
to later articles. One can always use the R help system to read more
about a data set or function.</p>
</dd>
</dl>
</div>
<div class="section level2">
<h2 id="references">References<a class="anchor" aria-label="anchor" href="#references"></a>
</h2>
<div id="refs" class="references csl-