cleanup up main to have a common base to R and python

example_proj/app.R

-# Name : app.R
-# Folder : ~/rshiny-k8s/example_proj
-# Date : 05/04/23
-# Aim : Simple example of app developped in RShiny.
-# Authors : From Shiny Examples - Modify by Elodie C. et Bryan B.
-
-# Load packages -------------------------------------------------------------------
-library(shiny)
-library(shinythemes)
-library(ggplot2)
-
-### Try to fix error "unable to open connection to X11"
-options(bitmapType='cairo')
-
-# Show installed and loaded packages
-sessionInfo()
-
-# UI part -------------------------------------------------------------------------
-# Define UI for app that draws a histogram ----
-ui <- fluidPage(
-
-  # App title ----
-  titlePanel("Hello Shiny in docker image!"),
-
-  # 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"),
-      # Output: SessionInfo fecth from server
-      htmlOutput("mySessionInfo")
-
-    )
-  )
-)
-# Server part -------------------------------------------------------------------------
-# 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")
-
-    })
-  output$mySessionInfo <- renderPrint({
-    
-    capture.output(sessionInfo())
-    capture.output(capabilities())
-
-    })
-
-}
-
-# Run Shiny app ----------------------------------------------------------------------
-shinyApp(ui = ui, server = server)