s="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/pkg/data.table/man/copy.html" class="external-link">copy</a></span><span class="op">(</span><span class="va">baseline_mcid</span><span class="op">)</span></span></code></pre></div>
</div>
<div class="section level2">
<h2 id="isolate-the-start-term">Isolate the start term<a class="anchor" aria-label="anchor" href="#isolate-the-start-term"></a>
</h2>
<p>The <em>start term</em> is the first term in which a student can be
considered a starter, that i