我在 Shiny 中有这个 DataTable,当我单击一行时,我想从变量文本框中的第一列中获取值。
所以在这种情况下,如屏幕截图所示,当我点击这一行时,我想进入Factuur Factuur
now 所在的位置Error: object of type 'closure' is not subsettable
。我设法获得了行号:
用户界面:
p(verbatimTextOutput('chauffeurdetails'))
服务器:
output$chauffeurdetails = renderText ({ chauffeurdetail = input$results_rows_selected })
任何人都想过我如何从第一列而不是仅从行号中获取值?
整个 R 代码:
# install packages if needed
if (!require("DT")) install.packages("DT")
if (!require("tidyr")) install.packages("tidyr")
if (!require("dplyr")) install.packages("dplyr")
if (!require("readxl")) install.packages("readxl")
if (!require("shiny")) install.packages("shiny")
if (!require("expss")) install.packages("expss")
# activate packages
library("tidyr")
library("dplyr")
library("readxl")
library("DT")
library("shiny")
library("expss")
# Lees MI bestand
MIinport <- read_excel("~/Documents/MI.xlsx", col_types = c("skip", "skip", "text", "skip", "text", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "text", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "text","skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "text","skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip", "skip"))
# Hernoem kolommen
MIinport <- unite(MIinport, KlantRef, Klant, Referentie, sep=" | ", remove = TRUE)
colnames(MIinport)<- c("Chauffeur", "Kenteken", "Klant", "ARDNK")
# Filter locatiewerk
MIinport <- subset(MIinport, is.na(MIinport$Kenteken))
MIinport$Kenteken <- NULL
DNK <- subset(MIinport, ARDNK == "DNK")
DNK$ARDNK <- NULL
AR <- subset(MIinport, ARDNK == "AR")
AR$ARDNK <- NULL
DNKfreq1 <- ftable(DNK$Chauffeur, DNK$Klant, dnn = c("Chauffeur", "Klant"))
DNKfreq2 <- as.data.frame(DNKfreq1)
DNKdata <- subset(DNKfreq2, Freq>0)
colnames(DNKdata)<- c("Chauffeur", "Klant", "Aantal")
list.DNKklanten <- as.list(unique(sort(DNKdata$Klant)))
ARfreq1 <- ftable(AR$Chauffeur, AR$Klant, dnn = c("Chauffeur", "Klant"))
ARfreq2 <- as.data.frame(ARfreq1)
ARdata <- subset(ARfreq2, Freq>0)
colnames(ARdata)<- c("Chauffeur", "Klant", "Aantal")
list.ARklanten <- as.list(unique(sort(ARdata$Klant)))
# Onderscheid studenten - FALSE = Student | TRUE = Senior
ARdata$Student <- as.numeric(grepl('[.]', ARdata$Chauffeur))
ARstudent <- subset(ARdata, Student == 0)
ARstudent$Student <- NULL
ARdata$Student <- NULL
# App
library(shiny)
ui <- basicPage(
p (""),
sidebarLayout(
sidebarPanel(
div(
h3("Zoek instellingen"),
uiOutput("chooselist"),
checkboxInput("StudentOption", label = "Alleen studenten", value = FALSE),
radioButtons("ARofDNK", label = "AR of DNK", choices = c("AR", "DNK"), selected = "AR", inline = TRUE)
),
div(tags$hr(),
h3("Chauffeur details"),
p(textOutput('chauffeurdetails')))),
mainPanel(
DT::dataTableOutput("results")
)
)
)
server <- function(input, output, session) {
# update datatable
output$chooselist <- renderUI({
if (input$ARofDNK == "AR"){
tagList(
selectInput("select", "Selecteer een klant", choices = c(" ", list.ARklanten))
)
} else {
tagList(
selectInput("select", "Selecteer een klant", choices = c(" ", list.DNKklanten))
)
}
})
output$value <- renderPrint({ input$ARofDNK })
SelectedKlant <- reactive({
if (input$StudentOption == TRUE & input$ARofDNK == "AR") {
a <- subset(ARstudent, (ARstudent$Klant == input$select))
return(a)
}
else if (input$StudentOption == FALSE & input$ARofDNK == "AR") {
a <- subset(ARdata, (ARdata$Klant == input$select))
return(a)
} else if (input$ARofDNK == "DNK"){
a <- subset(DNKdata, (DNKdata$Klant == input$select))
return(a)
}
})
output$results <- DT::renderDataTable(SelectedKlant(), options = list(pageLength = 20, dom = 'tip', order = list(2,'desc')), rownames = FALSE, width = 500, elementId = "results", colnames=c('Naam', 'Locatie', 'Aantal'), selection = 'single')
# output$chauffeurdetails = renderText ({
# SelectedKlant()[input$results_rows_selected,1]
# })
output$chauffeurdetails = renderText ({
req(length(input$results_rows_selected)>0)
SelectedKlant()[input$results_rows_selected,1]
})
# output$chauffeurdetails = renderText ({
# chauffeurdetail = input$results_rows_selected
# })
session$onSessionEnded(function() {
stopApp()
})
session$on
}
# Run the application
shinyApp(ui = ui, server = server, options = list(launch.browser=TRUE))
编辑:示例数据:https ://www.dropbox.com/s/zjxusxcan0ps1s3/Input%20Test.xlsx?dl=0 这些数据包含隐私敏感信息,所以我创建了一个小的替换。