ll>
    <div class="hidden name"><code>summarize.Rd</code></div>
    </div>

    <div class="ref-description">
    <p>Aggregate data using summary statistics such as mean or median. Can be calculated by group.</p>
    </div>

    <div id="ref-usage">
    <div class="sourceCode"><pre class="sourceCode r"><code><span><span class="fu">summarize</span><span class="op">(</span></span>
<span>  <span class="va">.df</span>,</span>
<span>  <span class="va">...</span>,</span>
<span>  .by <span class="op">=</span> <sp