, e.g. <code>bikes$day_night</code>:</p>
<div class="sourceCode" id="cb8"><pre class="sourceCode r"><code class="sourceCode r"><span id="cb8-1"><a href="get-started.html#cb8-1" tabindex="-1"></a><span class="fu">class</span>(bikes<span class="sc">$</span>day_night)</span>
<span id="cb8-2"><a href="get-started.html#cb8-2" tabindex="-1"></a><span class="do">## [1] &quot;character&quot;</span></span>
<span id="cb8-3"><a href="get-started.html#cb8-3" tabindex="-1"></a></span>
<span id="cb8-4"><a href="get-star