ps://rdrr.io/r/base/Extremes.html" class="external-link">min</a></span><span class="op">(</span><span class="va">term</span><span class="op">)</span>, max_term <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/Extremes.html" class="external-link">max</a></span><span class="op">(</span><span class="va">term</span><span class="op">)</span><span class="op">)</span>, by <span class="op">=</span> <span class="st">"institution"</span><span class="op">]</span></span>
<span><span class="co"