inst/material/dashboard/app.R

In jr-packages/jrWhyR: Jumping Rivers: Why R

library("shiny")

# Define UI for application that draws a histogram
ui = fluidPage(
  
  # Application title
  titlePanel("Old Faithful Geyser Data"),
  
  # Sidebar with a slider input for number of bins 
  sidebarLayout(
    sidebarPanel(
      sliderInput("bins",
                  "Number of bins:",
                  min = 1,
                  max = 50,
                  value = 30)
    ),
    
    # Show a plot of the generated distribution
    mainPanel(
      plotOutput("distPlot")
    )
  )
)

# Define server logic required to draw a histogram
server = function(input, output) {
  
  output$distPlot = renderPlot({
    # generate bins based on input$bins from ui.R
    x    = faithful[, 2] 
    bins = seq(min(x), max(x), length.out = input$bins + 1)
    
    # draw the histogram with the specified number of bins
    hist(x, breaks = bins, col = "darkgray", border = "white")
  })
}

# Run the application 
shinyApp(ui = ui, server = server)