我无法在反应式闪亮结构中对数据框进行子集并将其显示为表格。如果我尝试仅显示数据框,则可以,但无法对其进行子集和显示。我相信这与使用input$
的方式有关。
请帮忙,我对闪亮还很陌生。
数据集
dput(b)
structure(list(Date = c("1-Jan", "2-Jan", "3-Jan"), Month = c("Jan",
"Jan", "Jan"), Days = c("Thu", "Fri", "Sat"), A = c(30712L, 26842L,
21640L), B = c(26505L, 25906L, 22929L), C = c(22128L, 26814L,
22091L), D = c(30994L, 23935L, 20048L), E = c("38%", "51%", "37%"
), F = c(71L, 70L, 71L), G = c(91L, 114L, 104L), H = c(77L, 98L,
91L), I = c(-4621L, -463L, 291L), J = c("-32.00%", "-3.30%",
"2.00%")), .Names = c("Date", "Month", "Days", "A", "B", "C",
"D", "E", "F", "G", "H", "I", "J"), class = "data.frame", row.names = c(NA,
-3L))
ui.R
library(shiny)
library(shinythemes)
shinyUI(fluidPage(
sidebarLayout(
sidebarPanel(
selectInput(inputId = "col", label = "Columns",choices = colnames(b[4:8]),selected = colnames(b[4]))),
mainPanel(dataTableOutput(outputId = "table")))))
server.R
library(shiny)
library(shinythemes)
library(ggplot2)
library(dplyr)
b<-read.csv("newb.csv",header=TRUE,sep=",",stringsAsFactors=FALSE)
shinyServer(function(input, output) {
datum<-reactive({
d<-b[,input$col]
return(d)
})
output$table<-renderDataTable({datum()})
})
b[ , input$col, drop = FALSE]
? - talatdatum<-reactive({ d<-b[,input$col,drop=FALSE] d<-as.data.frame(d) })
谢谢,它起作用了。 - Shoaibkhanzheaders
。 - Shoaibkhanzdatum<-reactive({ b[, input$col, drop = FALSE]})
。 - talat