我正在编写一个闪亮的应用程序，之前一切都运行得很好，但突然出现了两个警告消息。我回到之前可以正常运行的副本，但它们现在也显示相同的错误消息，所以我真的很困惑。我的代码仍然可以运行，并在我的闪亮仪表板的结果选项卡上显示准确的结果，但我想追踪警告消息。我进行了调试，使用rendDataTable后第一个警告消失了，当我单击我的仪表板上的选项卡时，第二个警告出现。数据是一个n X 10的数据框，包含数字和字符。非常感谢任何帮助。如果我可以提供更多信息，请让我知道。
这里是2:
这里是1：
Warning in widgetFunc() :
renderDataTable ignores ... arguments when expr yields a datatable object; see ?renderDataTable
Warning: Error in cat: argument 1 (type 'environment') cannot be handled by 'cat'
Stack trace (innermost first):
74: cat
73: eval
72: eval
71: withVisible
70: evalVis
69: utils::capture.output
68: paste
67: output$ntext1
1: shiny::runApp
这里是2:
Warning in widgetFunc() :
renderDataTable ignores ... arguments when expr yields a datatable object; see ?renderDataTable
tran_cd=c('I','E','R')
data_source_cd=c('1','2','3','4')
library(shiny)
library(shinydashboard)
library(xlsx)
if (!require("DT")) install.packages('DT')
sessionInfo()
library(DT)
ui <- dashboardPage(
dashboardHeader(title = "ARC"),
dashboardSidebar(sidebarMenu(
menuItem("Settings", tabName = "settings", icon = icon("th")),
menuItem("Results Table", tabName = "ResultsTable", icon = icon("ResultsTable")))),
dashboardBody(
tabItems(tabName = "ResultsTable",
fluidPage(
headerPanel(
h1("Anomaly List", align="center", style = "font-family: 'Verdana';font-weight: 800; line-height: 1.1; color: #151515;")),
# fluidRow(
# column(8, DT::dataTableOutput("table",width = "100%"),offset = 2)))),
# # Create a new Row in the UI for selectInputs
fluidRow(
column(4,
selectInput("sour",
"Source Type:",
c("All",
unique(as.character(data_source_cd))))
),
column(4,
selectInput("sour1",
"Source Type:",
c("All",
unique(as.character(data_source_cd))))
),
column(4,
selectInput("tran",
"Transaction Type:",
c("All",
unique(as.character(tran_cd)))))),
# Create a new row for the table.
fluidRow(column(8, DT::dataTableOutput("table",width = "100%"),offset = 2))))
)))
library(shiny)
library(chron)
library(forecast)
library(ggplot2)
#names(iris) = gsub("\\.", "", names(iris))
setwd("C:/Users/Name/Documents/Projects/TrendAnalysis/Data")
source("C:/Users/Documents/Projects/TrendAnalysis/Rcode/App-1/MonitoringIngestion.R")
df=read.csv('list.csv',header=TRUE, stringsAsFactors = FALSE)
df=unique(df[,1:3])
dfrn=df[,2];
rownames(df)=make.names(dfrn, unique=TRUE)
shinyServer(function(input, output, session) {
rv <- reactiveValues()
rv$data <- NULL
ntext1 <- eventReactive(input$gobutton,{
if (input$dateRange[2]<input$dateRange[1]){print("You selected the date range option;however, the end date entered occurs before the starting date")}
else{
output$ntext1 <- renderText({print("Analysis Complete...Data Loading...")});
observe({ ## will 'observe' the button press
if(input$gobutton){
print("here") ## for debugging
Singledate=input$date;
Daterange=input$dateRange;
Alldata=input$checkbox;
SourceSelect=input$checkGroup1;
TranSelect=input$checkGroup2;
AirlineSelect=input$x3_rows_selected;
Mag_level=input$slider1;
rv$data <- MonitoringDDSIngestion(Alldata,Singledate,Daterange,SourceSelect,TranSelect,AirlineSelect,Mag_level) ## store the data in the reactive value
}
})
}
})
output$table <- DT::renderDataTable(DT::datatable({
data <- rv$data
if (input$sour != "All") {
data <- data[data[,1] == input$sour,]
}else{data}
if (input$sour1 != "All") {
data <-data[data[,2] == input$sour1,]
}else{data}
if (input$tran != "All") {
data <-data[data[,3] == input$tran,]
}else{data}
}), filter='top')
})
MonitoringIngestion2 <-function(All,date1,date2, source_cd,tran_cd,airline_list,mag_level) {
print(All); print(date1); print(date2); print(source_cd);print(tran_cd);print(airline_list);print(mag_level)
setwd("C:Documents/Projects//Data")
data = read.csv("November2015_December2015.csv",header=TRUE,sep=",",colClasses="factor")
}
data
DT，但由于DT已经有一段时间没有更新了（仍然是 0.1 版本），我怀疑这是由于较新版本的 Shiny（与 DT 交互）或者您安装了 GitHub 版本的 DT 所导致的。但如果您的结果是正确的，那么我建议您忽略这个警告。 - Xiongbing Jin