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app.R

@@ -1,10 +1,39 @@
 library(shiny)
 
+# Define UI for application that draws a histogram
 ui <- fluidPage(
-  titlePanel("Example Shiny Application")
+   
+   # 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')
+   })
 }
 
 shinyApp(ui = ui, server = server)

euler/server.R

@@ -1,20 +0,0 @@
-library(shiny)
-library(Rmpfr)
-
-
-shinyServer(function(input, output){
-      
- 
-      output$result <- renderText({
-            
-            precisionBits <- input$precision
-            one <- mpfr(1, precBits = precisionBits) 
-            e <- exp(one)
-            # TODO fix printing...
-            x <- capture.output(print(e, ndigits = precisionBits))[2]
-            gsub("^\\[1\\] (.+)$", "\\1", x)
-            
-            
-          })
-      
-    })

euler/ui.R

@@ -1,19 +0,0 @@
-library(shiny)
-
-shinyUI(
-    fluidPage(
-        titlePanel("Euler's e in arbitrary precision", "Euler's e"),
-        tags$br(),
-        
-        fluidRow(
-            column(2, sliderInput("precision", "Number of Precision Bits", min = 2, max = 256, 
-                    value = 10))
-        ),
-        fluidRow(
-            column(12, tags$h1(textOutput("result")))
-            
-        ),
-        tags$br(),
-        tags$p("We would like to acknowledge Leonhard Euler for his number and Martin Maechler for his Rmpfr package.")
-    )
-)

shiny-server.conf

@@ -1,21 +0,0 @@
-# Instruct Shiny Server to run applications as the user "shiny"
-run_as user;
-
-# Define a server that listens on port 3838
-server {
-  listen 3838;
-
-  # Define a location at the base URL
-  location / {
-
-    # Host the directory of Shiny Apps stored in this directory
-    site_dir /srv/shiny-server;
-
-    # Log all Shiny output to files in this directory
-    log_dir /var/log/shiny-server;
-
-    # When a user visits the base URL rather than a particular application,
-    # an index of the applications available in this directory will be shown.
-    directory_index on;
-  }
-}