s="op">(</span><span class="va">c</span>, <span class="va">d</span><span class="op">)</span><span class="op">)</span></span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #949494;"># A tidytable: 2 × 3</span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span>   c     d     avg_a</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>   <span style="color: #949494; font-style: italic;">&lt;chr&gt;</span> <span style="color: #949494; font-style: italic;">&