将ggvis整合到闪亮的错误

Question

我正在尝试学习如何用ggvis图替换闪亮的静态图.用下面ui.R和server.R文件,我可以得到一个完全正常工作闪亮应用程序时,我的情节输出基地-R或ggplot.当我尝试使用ggvis时出现以下错误.

Error in handlers$add(handler, key, tail) : Key / already in use

我已经尝试将我的文件的位置更改为不同的目录,清除我的全局环境等.到目前为止似乎没有任何工作.

我试图重现最小的可重现的例子.以下是在我的机器上重现错误.我正在输入存储在与ui.R和server.R相同的文件夹中的csv文件中的数据.我添加了一些可用于重现csv文件的数据的dput().

这是一个例子:

ui.R

library(shiny)
library(dplyr)
library(ggvis)


# Define UI
shinyUI(pageWithSidebar(


  # Application title
  headerPanel("Cricket"),

  sidebarPanel(

    selectInput("hteam", 
                label = "Home Team",
                choices = c("All Teams", "Australia", "England"), selected = "All teams"),

    br()

  ),


  mainPanel(
    plotOutput("CrickPlot")
  )

))

server.R

library(shiny)
library(dplyr)
library(ggvis)




shinyServer(function(input, output) {


  #### Input raw data
  df <- read.csv("mydf.csv", stringsAsFactors=F, header=T)

  df1 <- reactive({

    hometeam <-  input$hteam

  if(input$hteam != "All Teams"){  df <- df %>% filter(team==hometeam) }

  df %>% 
    group_by(player) %>% 
    summarize(totalruns=sum(runs,na.rm=T), totalinns=n() )

  })


####

output$CrickPlot <- renderPlot({


    tmp <- df1()

    tmp$id <- 1:nrow(tmp)

       all_values <- function(x) {
         if(is.null(x)) return(NULL)
         row <- tmp[tmp$id == x$id, ]
         paste("Name: ", tmp$player[x$id],
               "<br>Country: ",
               tmp$team[x$id],
               "<br>Total runs: ",
               tmp$totalruns[x$id])
       }  


    tmp %>% 
               ggvis(x = ~totalinns, 
                     y = ~totalruns, 
                     size := input_slider(10, 100),
                     size.hover := 200,
                     opacity := input_slider(0, 1),
                     key := ~id) %>%
         layer_points() %>%
         add_tooltip(all_values, "hover")



#  x <- df1()
#  plot(x$totalruns, x$totalinns)

})

}
)

这里编码的ggvis比我在现实中使用的更简单.但是,这仍然会重现错误.如果我总结一下我的df并尝试制作一个闪亮的ggvis图表,这段代码就可以很好地运行.此外,仅出于说明目的,如果删除了所有ggvis内容,则在hashmark之后的最后两行将在base-R中生成散点图.因此,我认为这与闪亮应用程序中的ggvis有关.

以下是此示例的mydf数据:

dput(mydf)

structure(list(player = c("CB Fry", "CB Fry", "G Boycott", "G Boycott", 
                          "G Boycott", "G Boycott", "MJ Slater", "MJ Slater", "MJ Slater", 
                          "MJ Slater", "MJ Slater", "MJ Slater", "MJ Slater", "MJ Slater", 
                          "SK Warne", "SK Warne", "SK Warne", "SK Warne", "SK Warne", "SK Warne"
), team = c("England", "England", "England", "England", "England", 
            "England", "Australia", "Australia", "Australia", "Australia", 
            "Australia", "Australia", "Australia", "Australia", "Australia", 
            "Australia", "Australia", "Australia", "Australia", "Australia"
), runs = c(1L, 50L, 68L, 31L, 30L, 23L, 26L, 16L, 123L, 1L, 
            45L, 43L, 28L, 10L, 15L, 2L, 0L, 14L, 2L, NA)), row.names = c(NA, 
                                                                          -20L), .Names = c("player", "team", "runs"), class = "data.frame")

提前致谢.我试图尽可能减少这一点,同时显示与错误相关的所有可能的细节.

Answer 1

在server.R中

  output$ggvisplot_ui <- renderUI({
    ggvisOutput("ggvisplot")
  })

  dl <- mtcars
  dl %>%
    ggvis(~mpg, ~wt) %>% 
    layer_points() %>% 
    bind_shiny("ggvisplot")

在ui.R

  mainPanel(
    htmlOutput("ggvisplot_ui")
  )