问题描述
我希望向页面上有 2 个 sund2b 绘图的闪亮应用添加一个点击事件。我希望文本输出仅参考他们最后单击的图,但它似乎只对第一个图而不是第二个图有反应。输出对一个来说很好,但我希望它对两者都有效。这是我所拥有的一个简化示例:
after-save-hook
解决方法
点击事件输入的名称取决于输出名称(input$sunburst2_click
代表 output$sunburst2
)。
请检查以下内容:
library(shiny)
library(sunburstR)
sequences <- read.csv(
system.file("examples/visit-sequences.csv",package = "sunburstR"),header = FALSE,stringsAsFactors = FALSE
)[1:200,]
sequences2 <- read.csv(
system.file("examples/visit-sequences.csv",stringsAsFactors = FALSE
)[201:400,]
ui <- fluidPage(sidebarLayout(
sidebarPanel(),# plot sunburst
mainPanel(
sund2bOutput("sunburst"),sund2bOutput("sunburst2"),textOutput("selection"),textOutput("selection2"),textOutput("selectionLatest")
)
))
server <- function(input,output,session) {
#sunburst1
output$sunburst <- renderSund2b({
add_shiny(sund2b(sequences))
})
#sunburst2
output$sunburst2 <- renderSund2b({
add_shiny(sund2b(sequences2))
})
#sunburst click event
selection <- reactive({
input$sunburst_click
})
selection2 <- reactive({
input$sunburst2_click
})
latestClick <- reactiveVal()
observeEvent(input$sunburst_click,{
latestClick(input$sunburst_click)
})
observeEvent(input$sunburst2_click,{
latestClick(input$sunburst2_click)
})
output$selection <- renderText(paste("plot 1:",paste(selection(),collapse = " - ")))
output$selection2 <- renderText(paste("plot 2:",paste(selection2(),collapse = " - ")))
output$selectionLatest <- renderText(paste("plot 1 or 2:",paste(latestClick(),collapse = " - ")))
}
shinyApp(ui = ui,server = server)
Here 可以找到“官方”示例。