"><span><span class="co"># alluvium cementation examples</span></span></span>
<span class="r-in"><span><span class="va">gg</span> <span class="op">&lt;-</span> <span class="fu">ggplot</span><span class="op">(</span><span class="fu">ggalluvial</span><span class="fu">::</span><span class="va"><a href="majors.html">majors</a></span>,</span></span>
<span class="r-in"><span>             <span class="fu">aes</span><span class="op">(</span>x <span class="op">=</span> <span class="va">semester</span>, stratum <span