我正在开发一个Shiny应用程序,并且在与rCharts集成时遇到了麻烦。我用一个数据库“Cars93”做了一个简单的应用程序,每个人都可以访问这个数据库来解释我的问题。使用闪亮的rCharts
我在应用程序中放置了一张表格和一张图表,该表格仅用于测试数据是否正确。
我的问题是该图不出现。
提前致谢!
路易斯
ui.R
library(shiny)
library(MASS)
require(rCharts)
options(RCHART_LIB = 'polycharts')
mydata<-Cars93
shinyUI(pageWithSidebar(
headerPanel('RCharts - Test'),
sidebarPanel(
selectInput("Manufacturer2", "Select a Manufacturer", levels(droplevels(mydata$Manufacturer)),
selected = "Acura"
),
selectInput("Type2", "Select a Type", levels(droplevels(mydata$Type))[3:4],selected = levels(droplevels(mydata$Type))[3]
),
width = 3
),
mainPanel(
tabsetPanel(
tabPanel("Table",dataTableOutput('mytable')),
tabPanel("Chart",showOutput('myplot', 'polycharts'))
)
))
)
server.R
library(shiny)
library(rCharts)
library(MASS)
options(RCHART_WIDTH = 800)
mydata<-Cars93
data2<-Cars93
shinyServer(function(input, output, session) {
observe({
updateSelectInput(session, "Type2", choices = levels(droplevels(mydata$Type[mydata$Manufacturer %in% input$Manufacturer2])),selected = levels(droplevels(mydata$Type[mydata$Manufacturer %in% input$Manufacturer2]))[1]
)
})
output$mytable = renderDataTable({
MANUFACTURER = input$Manufacturer2
TYPE = input$Type2
mydata<- mydata[mydata$Manufacturer %in% MANUFACTURER & mydata$Type %in% TYPE,]
mydata<-mydata[,c("Manufacturer","Type","Model","Weight")]
mydata
})
output$myplot<- renderChart({
MANUFACTURER = input$Manufacturer2
TYPE = input$Type2
mydata<- mydata[mydata$Manufacturer %in% MANUFACTURER & mydata$Type %in% TYPE,]
p1<-rPlot(Weight ~ Model, color = 'Model', data = mydata, type = 'bar')
p1$guides(
color = list(
numticks = length(factor(mydata$Model))
),
y = list(
min = 0,
max = 10
)
)
return(p1)
})
})
您需要设置'dom'。在'renderChart'中使用'p1 $ set(dom =“myplot”)'或者使用'renderChart2'来代替'renderChart'。 – jdharrison 2014-09-12 18:25:12
它的工作!非常感谢,@ jdharrison! – 2014-09-12 18:29:50