k">ggplot</a></span><span class="op">(</span>data <span class="op">=</span> <span class="va">flights</span><span class="op">)</span> <span class="op">+</span></span>
<span>  <span class="fu"><a href="../reference/geom_mosaic.html">geom_mosaic</a></span><span class="op">(</span><span class="fu"><a href="https://ggplot2.tidyverse.org/reference/aes.html" class="external-link">aes</a></span><span class="op">(</span>x <span class="op">=</span> <span class="fu"><a href="../reference/product.html">product</a></spa