uvial-shiny.Rmd"><code>vignettes/ggalluvial-shiny.Rmd</code></a></small>
      <div class="hidden name"><code>ggalluvial-shiny.Rmd</code></div>

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<div id="problem" class="section level2">
<h2 class="hasAnchor">
<a href="#problem" class="anchor"></a>Problem</h2>
<p>In an interactive visualization, it is visually cleaner and better for interpretation if labels and other information appear as “tooltips” when the user hovers over or clicks on elements of the plot, rather than displaying