n>, by <span class="op">=</span> <span class="st">"degree_count"</span><span class="op">]</span></span>
<span><span class="co">#&gt;    degree_count N_students</span></span>
<span><span class="co">#&gt;           &lt;int&gt;      &lt;int&gt;</span></span>
<span><span class="co">#&gt; 1:            1      49421</span></span>
<span><span class="co">#&gt; 2:            2        122</span></span></code></pre></div>
</div>
<div class="section level2">
<h2 id="closer-look">Closer look<a class="anchor" aria-label=