Aan de slagGa gratis aan de slag

Alien sightings: tab layout

As-is, the app is sort of busy with the graph on top of the table. Given that this is a dashboard, it might be nice to instead separate the two outputs.

The last step in building your dashboard is to take the plotOutput() and tableOutput() you've built and add the tab layout.

Deze oefening maakt deel uit van de cursus

Building Web Applications with Shiny in R

Cursus bekijken

Oefeninstructies

  • Add the tab panel layout and the two tabs. The first one should contain the plot, and the second one should contain the table. Feel free to name them whatever makes sense to you!

Praktische interactieve oefening

Probeer deze oefening eens door deze voorbeeldcode in te vullen.

ui <- fluidPage(
  titlePanel("UFO Sightings"),
  sidebarPanel(
    selectInput("state", "Choose a U.S. state:", choices = unique(usa_ufo_sightings$state)),
    dateRangeInput("dates", "Choose a date range:",
      start = "1920-01-01",
      end = "1950-01-01"
    )
  ),
  # MODIFY CODE BELOW: Create a tab layout for the dashboard
  mainPanel(
    plotOutput("shapes"),
    tableOutput("duration_table")
  )
)

server <- function(input, output) {
  output$shapes <- renderPlot({
    usa_ufo_sightings %>%
      filter(
        state == input$state,
        date_sighted >= input$dates[1],
        date_sighted <= input$dates[2]
      ) %>%
      ggplot(aes(shape)) +
      geom_bar() +
      labs(
        x = "Shape",
        y = "# Sighted"
      )
  })

  output$duration_table <- renderTable({
    usa_ufo_sightings %>%
      filter(
        state == input$state,
        date_sighted >= input$dates[1],
        date_sighted <= input$dates[2]
      ) %>%
      group_by(shape) %>%
      summarize(
        nb_sighted = n(),
        avg_duration_min = mean(duration_sec) / 60,
        median_duration_min = median(duration_sec) / 60,
        min_duration_min = min(duration_sec) / 60,
        max_duration_min = max(duration_sec) / 60
      )
  })
}

shinyApp(ui, server)
Code bewerken en uitvoeren