</code> argument using a named list and omit the <code>.names</code> argument from <code>across()</code>. Be sure that your output columns have the same names as before (i.e. they still end with <code>&quot;_max&quot;</code>).</p>
<div class="tutorial-exercise" data-label="faded-example-2" data-caption="Code" data-completion="1" data-diagnostics="1" data-startover="1" data-lines="6">
<pre class="text"><code>penguins %&gt;% 
  group_by(species, island) %&gt;% 
  summarize(___(c(___(is.numeric), -year), 
   