now
superseded. That means that they’ll stay around, but won’t receive any
new features and will only get critical bug fixes.</p>
<div id="why-do-we-like-across" class="section level3">
<h3>Why do we like <code>across()</code>?</h3>
<p>Why did we decide to move away from these functions in favour of
<code>across()</code>?</p>
<ol style="list-style-type: decimal">
<li><p><code>across()</code> makes it possible to express useful
summaries that were previously impossible:</p>
<div class="sourceCode" id="cb