R Plotly 版本 4.9.0 中的 plotly_click 错误。新版本有bug吗?

Errors with plotly_click in R Plotly version 4.9.0. Is there a bug in the new version?

更新 3:带有下拉按钮问题的新测试应用程序

library(shiny)
library(shinydashboard)
library(plotly)
library(shinyWidgets)

rm(list = ls(), envir = environment()) ## to prevent cross over from old runs

testData = data.frame(day = sample(seq(as.Date('1999/01/01'), as.Date('2000/01/01'), by="day"), 24), frequency = sample(1:5, 24, replace = T ), datecoloring = sample(1:2, 24, replace = T ))
testData$dayPOSIXct <- as.POSIXct(testData$day)

dateRangeMin <- min(testData$day)
dateRangeMax <- max(testData$day)




  ui <- dashboardPage(
    dashboardHeader(),
    dashboardSidebar( 
      menuItem("Testpage", tabName = "Testpage", icon = icon("home"))
                      ),
    dashboardBody( 
      tabItems(
        # 1) Test Tab ---------------------------------------------------------------

        tabItem(tabName = "Testpage",
            actionButton(inputId = 'Load', label = 'Data'),
            dropdownButton(inputId= "TestButton", label = NULL,
              plotlyOutput('testplot', width = 700, height = 500),
              icon = icon("list-alt"), 
              tooltip = tooltipOptions(title = "Click to open and render the plot"), width = "1670px")

        )
      )
      ),
    title = "Dashboard example"
  )


server <- function(input, output,session) {

  values <- reactiveValues()

  observeEvent(input$Load, { 
    values$testData <- testData
  })

  output$testplot <- renderPlotly({
    req(values$testData)
    p <-  plot_ly(data = values$testData, source = 'testplot',
                  color  = as.factor(values$testData$datecoloring), colors = c('#339fff', '#eaf5ff'),
                  opacity= 0.5, showlegend = T,
                  marker = list(line = list(width = 2, color = '#0000ff')),
                  hoverinfo = "text",
                  text = ~paste('Files:', values$testData$frequency, '<br>Date:', format(values$testData$day, format = '%Y-%m-%d'), sep = ' '))%>%
      add_bars( x = ~dayPOSIXct, y =  ~frequency,   type = "bar", width = 36000000
      )

    p
  })

  relayout_data <- reactive({
    req(values$testData)
    event_data("plotly_relayout", source = "testplot")
  })

  observeEvent(relayout_data(),{
    print(relayout_data())
  })  
}
shinyApp(ui, server)

更新 2: 这个问题确实可以通过正确使用 req() 的方法来规避,无论是否将 event_data 的观察与代码分开它对 event_data 做了一些事情。例如:

relayout_data <- reactive({
req(values$testData)
event_data("plotly_relayout", source = "testplot")


 })

  observeEvent(relayout_data(),{
    print(relayout_data())
  })

但是,这似乎无法为绘图位于内部的情况提供解决方案,即下拉按钮面板或闪亮应用程序的其他 tab/page。加载绘图所需的数据后,满足 req() 并且代码将触发,但绘图仍未呈现,因为它不在当前屏幕中。

更新:github 上也报告了这个问题,还没有真正的解决方案 https://github.com/ropensci/plotly/issues/1528

原题/post:

今天我更新了 R 中的所有包,突然我收到一长串错误,这些错误来自 R 中新的 plotly 版本 4.9.0 和我的 R 闪亮应用程序。

所有这些错误都涉及 plotly_relayoutplotly_click

Warning: The 'plotly_relayout' event tied a source ID of 'DateRangeHisto' is not registered. In order to obtain this event data, please add event_register(p, 'plotly_relayout') to the plot (p) that you wish to obtain event data from.

我尝试用各种方式添加event_register,但没有效果。我想新版本中有一个错误?

这是一个产生错误的无意义的虚拟应用程序 情节 4.9.0 和所有包更新。

更新:当数据不可用于绘图时似乎会发生错误 尽管 plot_ly 块中有 req(),但 event_data 会导致错误。这在以前的 plotly 版本中没有发生.....所以,现在的问题是如何摆脱它

    library(shiny)
    library(plotly)



rm(list = ls(), envir = environment()) ## to prevent cross over from old runs

testData = data.frame(day = sample(seq(as.Date('1999/01/01'), as.Date('2000/01/01'), by="day"), 24), frequency = sample(1:5, 24, replace = T ), datecoloring = sample(1:2, 24, replace = T ))
testData$dayPOSIXct <- as.POSIXct(testData$day)

dateRangeMin <- min(testData$day)
dateRangeMax <- max(testData$day)
if(!require('shiny')){ install.packages('shiny', dependencies=TRUE)}
if(!require('shinyWidgets')){ install.packages('shinyWidgets', dependencies=TRUE)}
if(!require('plotly')){ install.packages('plotly', dependencies=TRUE)}
if(!require('htmlwidgets')){ install.packages('htmlwidgets')}


ui <- fluidPage(
  actionButton(inputId = 'Load', label = 'Data'),
  plotlyOutput('testplot', width = 700, height = 500)

)


server <- function(input, output,session) {

  values <- reactiveValues()

  observeEvent(input$Load, { 
    values$testData <- testData
    })

  output$testplot <- renderPlotly({ 
    req(values$testData)
    p <-  plot_ly(data = values$testData, source = 'testplot',
                  color  = as.factor(values$testData$datecoloring), colors = c('#339fff', '#eaf5ff'),
                  opacity= 0.5, showlegend = T,
                  marker = list(line = list(width = 2, color = '#0000ff')),
                  hoverinfo = "text",
                  text = ~paste('Files:', values$testData$frequency, '<br>Date:', format(values$testData$day, format = '%Y-%m-%d'), sep = ' '))%>%
      add_bars( x = ~dayPOSIXct, y =  ~frequency,   type = "bar", width = 36000000
      )
    p
  })

  observeEvent(event_data("plotly_relayout", source = "testplot"),{
    #any code here, doesn't matter, bug happens already
  })


}

shinyApp(ui, server)

Session 信息

sessionInfo()
R version 3.5.3 (2019-03-11)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 7 x64 (build 7601) Service Pack 1

Matrix products: default

locale:
[1] LC_COLLATE=Dutch_Netherlands.1252  LC_CTYPE=Dutch_Netherlands.1252    LC_MONETARY=Dutch_Netherlands.1252 LC_NUMERIC=C                       LC_TIME=Dutch_Netherlands.1252    

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] plotly_4.9.0  ggplot2_3.1.1 shiny_1.3.2  

loaded via a namespace (and not attached):
 [1] Rcpp_1.0.1         pillar_1.4.0       compiler_3.5.3     later_0.8.0        colourpicker_1.0.3 plyr_1.8.4         shinyjs_1.0        tools_3.5.3        digest_0.6.19      viridisLite_0.3.0 
[11] jsonlite_1.6       tibble_2.1.1       gtable_0.3.0       pkgconfig_2.0.2    rlang_0.3.4        rstudioapi_0.10    crosstalk_1.0.0    yaml_2.2.0         httr_1.4.0         withr_2.1.2       
[21] dplyr_0.8.1        htmlwidgets_1.3    grid_3.5.3         DT_0.6             tidyselect_0.2.5   glue_1.3.1         data.table_1.12.2  R6_2.4.0           tidyr_0.8.3        purrr_0.3.2       
[31] magrittr_1.5       scales_1.0.0       promises_1.0.1     htmltools_0.3.6    assertthat_0.2.1   mime_0.6           xtable_1.8-4       colorspace_1.4-1   httpuv_1.5.1       miniUI_0.1.1.1    
[41] lazyeval_0.2.2     munsell_0.5.0      crayon_1.3.4    

问题是 observeEvent 试图在渲染图之前访问 event_data。您可以通过对您的 event_data() 使用 req() 来解决此问题。 Plotly 4.9.0 确实似乎对此更严格。

library(shiny)
library(shinydashboard)
library(plotly)
library(shinyWidgets)

rm(list = ls(), envir = environment()) ## to prevent cross over from old runs

testData = data.frame(day = sample(seq(as.Date('1999/01/01'), as.Date('2000/01/01'), by="day"), 24), frequency = sample(1:5, 24, replace = T ), datecoloring = sample(1:2, 24, replace = T ))
testData$dayPOSIXct <- as.POSIXct(testData$day)

dateRangeMin <- min(testData$day)
dateRangeMax <- max(testData$day)

ui <- dashboardPage(
  dashboardHeader(),
  dashboardSidebar(
    sidebarMenu(
      menuItem("Testpage", tabName = "Testpage", icon = icon("home"))
    )
  ),
  dashboardBody( 
    tabItems(
      # 1) Test Tab ---------------------------------------------------------------

      tabItem(tabName = "Testpage",
              actionButton(inputId = 'Load', label = 'Data'),
              dropdownButton(inputId = "TestButton", label = NULL,
                             plotlyOutput('testplot', width = 700, height = 500),
                             icon = icon("list-alt"), 
                             tooltip = tooltipOptions(title = "Click to open and render the plot"), width = "1670px")

      )
    )
  ),
  title = "Dashboard example"
)


server <- function(input, output, session) {

  # output$testplot <- renderPlotly({plot_ly(data.frame(NULL), source = 'testplot')})

  values <- reactiveValues()

  observeEvent(input$Load, {
    values$testData <- testData
  })

  output$testplot <- renderPlotly({
    req(values$testData)
    p <-  plot_ly(data = values$testData, source = 'testplot',
                  color  = as.factor(values$testData$datecoloring), colors = c('#339fff', '#eaf5ff'),
                  opacity= 0.5, showlegend = T,
                  marker = list(line = list(width = 2, color = '#0000ff')),
                  hoverinfo = "text",
                  text = ~paste('Files:', values$testData$frequency, '<br>Date:', format(values$testData$day, format = '%Y-%m-%d'), sep = ' '))%>%
      add_bars( x = ~dayPOSIXct, y =  ~frequency,   type = "bar", width = 36000000)
    p 
  })

  relayout_data <- reactive({
    req(values$testData)
    req(input$TestButton_state)
    event_data("plotly_relayout", source = "testplot")
  })

  observeEvent(relayout_data(),{
    print(relayout_data())
  })  
}
shinyApp(ui, server)

我遇到了同样的问题,避免警告的一种可能方法是使用 suspended = TRUE 以挂起状态启动监视 event_dataobserveEvent,例如

observer <- observeEvent(event_data("plotly_relayout", source = "testplot"), suspended = TRUE, {
        print(event_data("plotly_relayout", source = "testplot"))
      }) 

然后只有在定义绘图对象p后在renderPlotly中添加observer$resume()创建绘图后才开始观察。


以下最小的 shiny-app 通过观察 event_data("plotly_click")uiOutput 内的情节来说明这一点,该情节仅在选择 actionButtoncheckbox 后可用:

library(shiny)
library(plotly)

ui <- fluidPage(

    ## button
    actionButton("load", label = "New data"),
    ## checkbox
    checkboxInput("show", label = "Show plot"),
    ## plot 
    uiOutput("plot_ui"),
    ## click events
    tableOutput("clicked")

)

server <- function(input, output, session) {

  ## reactive values
  r <- reactiveValues(
      data = NULL,
      suspended = TRUE,
      clicked = NULL
  )

  ## load data 
  observeEvent(input$load, { 
        r$data <- data.frame(x= 1:100, y = rnorm(100))
      })

  ## show plot only if checkbox is selected
  output$plot_ui <- renderUI({
        req(input$show)
        plotlyOutput("plot") 
      })

  ## plotly plot
  output$plot <- renderPlotly({
        req(r$data)
        p <- plot_ly(data = r$data, x = ~x, y = ~y, mode = "markers", type = "scatter", source = "plot")
        ## resume observer only if suspended 
        if(r$suspended) {
          observer$resume()
          r$suspended <- FALSE
        }
        return(p)
      })

  ## observe click events
  observer <- observeEvent(event_data("plotly_click", source = "plot"), suspended = TRUE, {
        r$clicked <- rbind(r$clicked, event_data("plotly_click", source = "plot"))
      })  

  ## display clicked points
  output$clicked <- renderTable(
      r$clicked
  )

}

shinyApp(ui, server)

注意:反应值 r$suspended 确保仅当观察者的状态实际上被挂起时才调用 observer$resume()