eom_alluvium</a></span><span class="op">(</span><span class="fu">aes</span><span class="op">(</span>fill <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/factor.html">factor</a></span><span class="op">(</span><span class="va">cluster</span><span class="op">)</span><span class="op">)</span>, knot.pos <span class="op">=</span> <span class="fl">0.25</span><span class="op">)</span> <span class="op">+</span> 
      <span class="fu"><a href="../reference/geom_stratum.html">geom_stratum</