span class="op">+</span> <span class="fu"><a href="geom_flow.html">geom_flow</a></span><span class="op">(</span><span class="fu">aes</span><span class="op">(</span>fill <span class="op">=</span> <span class="va">Survived</span>, alpha <span class="op">=</span> <span class="va">Sex</span><span class="op">)</span>, stat <span class="op">=</span> <span class="st">"alluvium"</span>,</span></span>
<span class="r-in"><span>               lode.guidance <span class="op">=</span> <span class="st">"forward"</span><sp