 elements. With that information, we can determine which plot element the cursor is hovering over and display the appropriate information in the tooltip or other output method.</p>
<p><em>Note:</em> The app demonstrated here depends on the packages <strong>htmltools</strong> and <strong>sp</strong>, in addition of course to <strong>ggalluvial</strong> and <strong>shiny</strong>. Please be aware that all of these packages will need to be installed on the server where your Shiny app is running.</p>
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