idth is set in <code><a href="../reference/geom_stratum.html">geom_stratum()</a></code> so, for example, we know that the x-coordinates of the first stratum are 1 ± <code>width</code>/2. The y-coordinates can be determined from the number of rows in the input data multiplied by their weights.</p>
</div>
<div id="hovering-over-and-clicking-on-alluvia" class="section level3">
<h3 class="hasAnchor">
<a href="#hovering-over-and-clicking-on-alluvia" class="anchor"></a>Hovering over and clicking on alluvia</h3>
