我发布我的闪亮应用程序时无法加载数据

时间:2016-06-03 07:12:31

标签: r shiny

我创建了一个简单的闪亮应用。相关代码如下所示:

Server.R

    library(shiny)
    library(ggplot2)

    shinyServer(function(input, output){

      #Hier output je je plot, let op $myhist is iets wat je teruggeeft
      output$myhist <- renderPlot({


        df_graph <- df_test[df_test$playlist_name == input$var,]

        #Dit is gewoon een normale graph aanmaken obv graph_data
        g <- ggplot(df_graph, aes(x=key, y=value)) + geom_boxplot()
        print(g)
      })
    })

UI.R

library(shiny)
shinyUI(fluidPage(

  #maken sample data

  #setwd("~/shiny_apps/echonest"),
  df_test <- read.csv("df_echonest.csv", stringsAsFactors = F),
  listIDs <- df_test$playlist_name,
  #outlinen title
  titlePanel(title = "This is the title"),
  sidebarLayout(
    sidebarPanel(

      #Here you enter the var that you would like to use to filter the data shown in the graph
      selectInput("var", "Select the eventID", choices = listIDs),
      br(),
      sliderInput("amount of fluctuation", "Integer:",
                  min=0, max=30, value=0)
    ),

    mainPanel(("Personal information"),
              plotOutput("myhist"))
  )
)) 

运行应用程序所需的所有相关数据都存储在.csv文件中,该文件也放在同一文件夹中,并使用UI.R文件中的以下行加载:

df_test <- read.csv("df_echonest.csv", stringsAsFactors = F),

当我在本地运行时,一切顺利。但是,当我尝试使用闪亮部署它时,尝试访问相关页面(https://marcvanderpeet12.shinyapps.io/echonest/)I获取消息:

Personal information Error: object 'df_test' not found

虽然列表实际加载(并且该信息也来自df_test)。有什么想法会出错吗?

1 个答案:

答案 0 :(得分:0)

尝试在server.R中导入df_echonest.csv,UI找到它但没有服务器端