# NOT RUN {
## Only run examples in interactive R sessions
if (interactive()) {
options(device.ask.default = FALSE)
# Define UI
ui <- fluidPage(
  # Application title
  titlePanel("Hello Shiny!"),
  sidebarLayout(
    # Sidebar with a slider input
    sidebarPanel(
      sliderInput("obs",
                  "Number of observations:",
                  min = 0,
                  max = 1000,
                  value = 500)
    ),
    # Show a plot of the generated distribution
    mainPanel(
      plotOutput("distPlot")
    )
  )
)
# Server logic
server <- function(input, output) {
  output$distPlot <- renderPlot({
    hist(rnorm(input$obs))
  })
}
# Complete app with UI and server components
shinyApp(ui, server)
}
# }
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