library(shiny)

# Define UI for application that plots random distributions 
shinyUI(fluidPage(
  
  # Application title
  titlePanel("Hello Shiny!"),
  
  # Sidebar with a slider input for number of observations
  sidebarLayout(
    sidebarPanel(
      sliderInput("obs", 
                  "Number of observations:", 
                  min = 1, 
                  max = 1000, 
                  value = 500)
    ),
    
    # Show a plot of the generated distribution
    mainPanel(
      plotOutput("distPlot")
    )
  )
))