Created
July 15, 2024 09:06
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quick way to create a shiny app on Seven Birdges platform
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| library(shiny) | |
| # Define UI for app that draws a histogram ---- | |
| ui <- fluidPage( | |
| # App title ---- | |
| titlePanel("Ciao Shiny!"), | |
| # Sidebar layout with input and output definitions ---- | |
| sidebarLayout( | |
| # Sidebar panel for inputs ---- | |
| sidebarPanel( | |
| # Input: Slider for the number of bins ---- | |
| sliderInput(inputId = "bins", | |
| label = "Number of bins:", | |
| min = 1, | |
| max = 50, | |
| value = 30) | |
| ), | |
| # Main panel for displaying outputs ---- | |
| mainPanel( | |
| # Output: Histogram ---- | |
| plotOutput(outputId = "distPlot") | |
| ) | |
| ) | |
| ) | |
| # Define server logic required to draw a histogram ---- | |
| server <- function(input, output) { | |
| # Histogram of the Old Faithful Geyser Data ---- | |
| # with requested number of bins | |
| # This expression that generates a histogram is wrapped in a call | |
| # to renderPlot to indicate that: | |
| # | |
| # 1. It is "reactive" and therefore should be automatically | |
| # re-executed when inputs (input$bins) change | |
| # 2. Its output type is a plot | |
| output$distPlot <- renderPlot({ | |
| x <- faithful$waiting | |
| bins <- seq(min(x), max(x), length.out = input$bins + 1) | |
| hist(x, breaks = bins, col = "#75AADB", border = "white", | |
| xlab = "Waiting time to next eruption (in mins)", | |
| main = "Histogram of waiting times") | |
| }) | |
| } | |
| shinyApp(ui = ui, server = server) | |
| # Note taken from https://shiny.rstudio.com/articles/function.html |
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