Question

我创建了一个Shinydashboard并希望生成一个outputTable，但是我得到了错误对象＆＃34;输出＆＃34;未找到。我完全不知道为什么会这样。在服务器功能中，我有一个＆＃34;输出＆＃34;，数据流也应该有效。你能帮助我吗？这是代码：

### Notwendige Pakete laden.

rm(list = ls())

if (!require('dplyr')) install.packages('dplyr'); library('dplyr')
if (!require('shiny')) install.packages('shiny'); library('shiny')
if (!require('shinydashboard')) install.packages('shinydashboard'); library('shinydashboard')
if (!require('car')) install.packages('car'); library('car')
if (!require('Hmisc')) install.packages('Hmisc'); library('Hmisc')
if (!require('ggplot2')) install.packages('ggplot2'); library('ggplot2')
if (!require('foreign')) install.packages('foreign'); library('foreign')
if (!require('tidyr')) install.packages('tidyr'); library('tidyr')
if (!require('highcharter')) install.packages('highcharter'); library('highcharter')
if (!require('DT')) install.packages('DT'); library('DT')

data <- readRDS("C:/Users/langma/Desktop/Mini/MP_MINI_Aftersales_Export.rds")
datalabels <- readRDS("C:/Users/langma/Desktop/Mini/var.labels.rds")

## app.R ##


ui <- dashboardPage(
    dashboardHeader(title = "Mini Dashboard"),
    dashboardSidebar(includeCSS("www/style.css"),
        sidebarMenu(
            h3("Filtereinstellungen"),
            selectizeInput("country", "Land", choices = data$v_2, selected = data$v_2, multiple = TRUE),
            selectizeInput("modell", "Automodell", choices = data$v_3, selected = data$v_3, multiple = TRUE),
            selectizeInput("sex", "Geschlecht", choices = data$v_2, selected = data$v_2, multiple = TRUE),
            selectizeInput("money", "Finanzierung", choices = data$v_18, selected = data$v_18, multiple = TRUE)
        )
    ),
    dashboardBody(
        fluidRow(
            tabBox(width = 6,
                title = "Touchpoints",
                # The id lets us use input$tabset1 on the server to find the current tab
                id = "tabset1", height = "500px",
                tabPanel("Tab1", tableOutput("anzahl")),
                tabPanel("Tab2", "Kaufort"),
                tabPanel("Tab3", "Privatkauf Anbahnung")
            ),
            tabBox(width = 6,
                   title = "Automotive", 
                   # The id lets us use input$tabset1 on the server to find the current tab
                   id = "tabset2", height = "500px",
                   tabPanel("Tab4", "Neu-/Gebrauchtwagen"),
                   tabPanel("Tab5", "Kaufort"),
                   tabPanel("Tab6", "Privatkauf Anbahnung")
            )
    )
))

server <- function(input, output, session) { }
        df <- reactive({
            filtereddata <- data %>%
                filter(v_2 %in% input$country)
        })

        output$anzahl <- renderTable({
            df()
        })


shinyApp(ui, server)

Answer 1

创建reproducible examples很有帮助，以便那些尝试回答您问题的人可以测试他们的回答。

那就是说，线索是你的应用程序无法找到输出对象，这意味着它不在反应环境中，而shinyapp中的所有东西都需要。唯一可行的方法是输出表实际上不在服务器功能中。将括号编辑为类似的内容并查看它的位置：

server <- function(input, output, session) {
        df <- reactive({
            filtereddata <- data %>%
                filter(v_2 %in% input$country)
        })

        output$anzahl <- renderTable({
            df()
        })
}

对象＆＃39;输出＆＃39;未找到

1 个答案: