ref="Intro.html#cb21-6"></a><span class="st">  </span><span class="kw">summarise</span>(<span class="dt">week_sleep =</span> <span class="kw">mean</span>(sleep, <span class="dt">na.rm =</span> <span class="ot">TRUE</span>))</span></code></pre></div>
<ul>
<li>Pipes (chaining commands)</li>
</ul>
<div class="sourceCode" id="cb22"><pre class="sourceCode r"><code class="sourceCode r"><span id="cb22-1"><a href="Intro.html#cb22-1"></a><span class="co"># Good</span></span>
<span id="cb22-2"><a href="Intro.html#cb2