1</span>, <span class="dv">3</span>), <span class="at">y =</span> <span class="fu">c</span>(<span class="sc">-</span><span class="dv">1</span>, <span class="sc">-</span><span class="dv">4</span>, <span class="sc">-</span><span class="dv">9</span>))</span>
<span id="cb5-2"><a href="#cb5-2" tabindex="-1"></a>df <span class="sc">%&gt;%</span> </span>
<span id="cb5-3"><a href="#cb5-3" tabindex="-1"></a>  <span class="fu">group_by</span>(g) <span class="sc">%&gt;%</span> </span>
<span id="cb5-4"><a href="#cb5-4"