从闪亮的App中的文件(即源)中读取R代码

时间:2018-10-30 23:03:21

标签: r shiny

我想通过将代码的各个部分移动到单独的文件中来对我闪亮的应用程序代码进行模块化。然后,我使用对source函数的调用来包含文件的内容:source("./www/some_code.R", local = TRUE)

除了效果不佳外,它效果很好:TRUE一词被添加到插入内容的正下方。

您能帮助我理解为什么会发生这种情况以及如何删除不需要的文本吗?

例如,

创建app.R

#
# Find out more about building applications with Shiny here:
#
#    http://shiny.rstudio.com/
#

library(shiny)

# Define UI for application that draws a histogram
ui <- fluidPage(

   # Application title
   titlePanel("Old Faithful Geyser Data"),

   # Sidebar with a slider input for number of bins 
   sidebarLayout(
      sidebarPanel(
         source("./www/slider.R", local = TRUE)
      ),

      # 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')
   })
}

# Run the application 
shinyApp(ui = ui, server = server)

,在www文件夹中,slider.R

sliderInput("bins",
            "Number of bins:",
            min = 1,
            max = 50,
            value = 30)

enter image description here

1 个答案:

答案 0 :(得分:0)

当我发布此消息时,我看到了指向该问题的链接,它回答了以下问题:displaying TRUE when shiny files are split into different folders

我以为我做了研究...我应该删除整个线程吗?