abindex="-1"></a><span class="co">#&gt; #   vehicles &lt;list&gt;, starships &lt;list&gt;</span></span></code></pre></div>
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<div id="if-_at-_all" class="section level2">
<h2><code>_if</code>, <code>_at</code>, <code>_all</code></h2>
<p>Prior versions of dplyr allowed you to apply a function to multiple
columns in a different way: using functions with <code>_if</code>,
<code>_at</code>, and <code>_all()</code> suffixes. These functions
solved a pressing need and are used by many people, but are 