Modern Data Science with R by Baumer Benjamin S.;Kaplan Daniel T.;Horton Nicholas J.; & Daniel T. Kaplan & Nicholas J. Horton

Author:Baumer, Benjamin S.;Kaplan, Daniel T.;Horton, Nicholas J.; & Daniel T. Kaplan & Nicholas J. Horton
Language: eng
Format: epub
Publisher: CRC Press LLC
Published: 2021-03-26T00:00:00+00:00

The code shown in Figure 14.13 makes up the rest of the Shiny app. We create a reactive object that is dynamically filtered based on which borough and cuisine are selected. Calls made to the req() function wait until the reactive inputs are available (at startup these will take time to populate with the default values). The two functions are linked with a call to the shinyApp() function. Figure 14.14 displays the Shiny app when it is running.

Figure 14.13: Server processing code for a more sophisticated Shiny app.

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