 class="fu">tibble</span>(</span>
<span id="cb23-3"><a href="get-started.html#cb23-3" tabindex="-1"></a>  <span class="at">group =</span> <span class="fu">rep</span>(<span class="fu">c</span>(<span class="st">&quot;A&quot;</span>, <span class="st">&quot;B&quot;</span>, <span class="st">&quot;C&quot;</span>), <span class="dv">4</span>),</span>
<span id="cb23-4"><a href="get-started.html#cb23-4" tabindex="-1"></a>  <span class="at">year =</span> <span class="fu">rep</span>(<span class="fu">rep</span>(<span cl