2-2"></a>iris <span class="op">%&gt;%</span></span>
<span id="cb22-3"><a href="Intro.html#cb22-3"></a><span class="st">  </span><span class="kw">group_by</span>(Species) <span class="op">%&gt;%</span></span>
<span id="cb22-4"><a href="Intro.html#cb22-4"></a><span class="st">  </span><span class="kw">summarize_if</span>(is.numeric, mean) <span class="op">%&gt;%</span></span>
<span id="cb22-5"><a href="Intro.html#cb22-5"></a><span class="st">  </span><span class="kw">ungroup</span>() <span class="op">%&gt;%</