ass="op">(</span><span class="va">stratum</span><span class="op">)</span><span class="op">)</span><span class="op">)</span></span></span>
<span class="r-plt img"><img src="stat_alluvium-11.png" alt="" width="700" height="433"></span>
<span class="r-in"><span><span class="fu">ggplot</span><span class="op">(</span><span class="fu"><a href="https://rdrr.io/r/base/transform.html" class="external-link">transform</a></span><span class="op">(</span><span class="fu">alluvial</span><span class="fu">::</span><span cl