Embedded subheaders</li>
<li>Broken values</li>
<li>Merged cells and values wrapped within columns</li>
<li>Broken rows</li>
<li>Broken headers</li>
</ul>
<p><strong>Embedded subheaders</strong> are usually grouping variables
embedded into another variable, used to show hierarchical data or create
small multiples of data.</p>
<p>A simple example would be a coffee shop menu:</p>
<div class="sourceCode" id="cb1"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">dat</span> <s