center; color: DarkRed;
}
h1.title {
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}
h2 {
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}
h3 {
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}
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<div style="margin-bottom:20px;">

</div>
<div class="section level3">
<h3 id="preliminaries">Preliminaries<a class="anchor" aria-label="anchor" href="#preliminaries"></a>
</h3>
<p>Install and load a version of <code>"sdam"</code> package.</p>
<div class="sourceCode" id="cb1"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span