如果您运行下面的 R Shiny 脚本，您会在 R Shiny 仪表板中看到两个框，左侧的图表显示事件日志数据patients_eventlog"中发生的所有跟踪或活动集的图.患者2"是脚本中的数据，用于解释出现在a1"列中的每个病例，相应的活动基于a2"列.我的要求是，当我单击左侧图表中特定轨迹上的任意位置时，我应该获得相关列a1"、a2"和a3"，其中的数据仅具有且仅具有其中活动的那些情况痕迹正在发生.例如.比方说左侧图表中的跟踪具有活动注册"和分类和评估"，通过单击跟踪，我想查看只有并且只有这两个活动的案例.这只需要在output$sankey_table"服务器组件中稍作调整.请帮忙，谢谢.

If you run the R shiny script below, you get two boxes in an R shiny dashboard, The chart on the left displays a plot for all the traces or set of activities that occur in the eventlog data "patients_eventlog". "patients2" is a data in the script that explains each and every case appearing in column "a1", and corresponding activities basides in column "a2". My requirement is that when I click anywhere on a particular trace in the chart on left, I should get the relevant columns "a1","a2" and "a3" with the data having only and only those cases in which the activities in that trace are occurring. E.g. Let's say a trace in the chart on left has activites "Registration" and "Triage and Assessment", the by clicking on the trace, I want to see the cases with only and only those two activities. This just needs a minor tweak in the "output$sankey_table" server component. Please help and thanks.

## app.R ##
library(shiny)
library(shinydashboard)
library(bupaR)
library(lubridate)
library(dplyr)
library(xml2)
library(ggplot2)
library(ggthemes)
library(glue)
library(tibble)
library(miniUI)
library(tidyr)
library(shinyWidgets)
library(plotly)
library(DT)
library(splitstackshape)
library(scales)
patients$patient = as.character(patients$patient)
a1 = patients$patient
a2 = patients$handling
a3 = patients$time
a123 = data.frame(a1,a2,a3)
patients_eventlog = simple_eventlog(a123, case_id = "a1",activity_id = "a2", 
timestamp = "a3")
dta <- reactive({
tr <- data.frame(traces(patients_eventlog, output_traces = T, output_cases = 
F))
tr.df <- cSplit(tr, "trace", ",")
tr.df$af_percent <-
percent(tr.df$absolute_frequency/sum(tr.df$absolute_frequency))
pos <- c(1,4:ncol(tr.df))
tr.df <- tr.df[,..pos]
tr.df <- melt(tr.df, id.vars = c("trace_id","af_percent"))
tr.df
})
Purchase_Final <- reactive({
patients1 <- arrange(patients_eventlog, a1)
patients2 <- patients1 %>% arrange(a1, a3,a2)
patients2 %>%
group_by(a1) %>%
mutate(a3 = as.POSIXct(a3, format = "%m/%d/%Y %H:%M"),diff_in_sec = a3 - 
lag(a3)) %>% 
mutate(diff_in_sec = ifelse(is.na(diff_in_sec),0,diff_in_sec)) %>% 
mutate(diff_in_hours = as.numeric(diff_in_sec/3600)) %>% 
mutate(diff_in_days = as.numeric(diff_in_hours/24))
})
ui <- dashboardPage(
dashboardHeader(title = "Trace Chart"),
dashboardSidebar(
width = 0
),
dashboardBody(
box(title = "Trace Chart", status = "primary",height = "455" ,solidHeader = 
T,
    plotlyOutput("trace_plot"),style = "height:420px; overflow-y: 
scroll;overflow-x: scroll;"),

box( title = "Trace Summary", status = "primary", height = "455",solidHeader 
= T, 
     dataTableOutput("sankey_table"))
)
)
server <- function(input, output) 
{ 
output$trace_plot <- renderPlotly({


  mp1 = ggplot(data = dta(), aes(x = variable,y = trace_id, fill = value,
                               label = value,
                               text=paste("Variable:",variable,"<br> Trace 
                                          ID:",trace_id,"<br> 
 Value:",value,"<br> Actuals:",af_percent))) +
  geom_tile(colour = "white") +
  geom_text(colour = "white", fontface = "bold", size = 2) +
  scale_fill_discrete(na.value="transparent") +
  theme(legend.position="none") + labs(x = "Traces", y = "Activities")
  ggplotly(mp1, tooltip=c("text"), height = 1226, width = 1205)

 })
 output$sankey_table <- renderDataTable({
 d = event_data("plotly_click")
 d
 })

 }
 shinyApp(ui, server)

插件脚本供参考

app.R

library(shiny)
library(shinydashboard)
library(bupaR)
library(lubridate)
library(dplyr)
library(xml2)
library(ggplot2)
library(ggthemes)
library(glue)
library(tibble)
library(miniUI)
library(tidyr)
library(shinyWidgets)
library(plotly)
library(DT)
library(splitstackshape)
library(scales)
dta <- reactive({
tr <- data.frame(traces(patients, output_traces = T, output_cases = F))
tr.df <- cSplit(tr, "trace", ",")
tr.df$af_percent <-
percent(tr.df$absolute_frequency/sum(tr.df$absolute_frequency))
pos <- c(1,4:ncol(tr.df))
tr.df <- tr.df[,..pos]
tr.df <- melt(tr.df, id.vars = c("trace_id","af_percent"))
tr.df
})
patients10 <- reactive({
patients11 <- arrange(patients, patient)
patients12 <- patients11 %>% arrange(patient, time,handling_id)
patients12 %>%
group_by(patient) %>%
mutate(time = as.POSIXct(time, format = "%m/%d/%Y %H:%M"),diff_in_sec = time 
- lag(time)) %>% 
mutate(diff_in_sec = ifelse(is.na(diff_in_sec),0,diff_in_sec)) %>% 
mutate(diff_in_hours = as.numeric(diff_in_sec/3600)) %>% 
mutate(diff_in_days = as.numeric(diff_in_hours/24))
})
ui <- dashboardPage(
dashboardHeader(title = "Sankey Chart"),
dashboardSidebar(
width = 0
),
dashboardBody(
box(title = "Sankey Chart", status = "primary",height = "455" ,solidHeader = 
T,
    plotlyOutput("trace_plot")),

box( title = "Case Summary", status = "primary", height = "455",solidHeader 
= T, 
     dataTableOutput("trace_table"))
)
)
server <- function(input, output) 
{ 
output$trace_plot <- renderPlotly({
mp1 = ggplot(data = dta(), aes(x = variable,y = trace_id, fill = value,
                               label = value,
                               text=paste("Variable:",variable,"<br> Trace 
                                          ID:",trace_id,"<br> 
Value:",value,"<br> Actuals:",af_percent))) +
  geom_tile(colour = "white") +
  geom_text(colour = "white", fontface = "bold", size = 2) +
  scale_fill_discrete(na.value="transparent") +
  theme(legend.position="none") + labs(x = "Traces", y = "Activities")
ggplotly(mp1, tooltip=c("text"), height = 516, width = 605)

})
output$trace_table <- renderDataTable({
req(event_data("plotly_click"))
Values <- dta() %>% 
  filter(trace_id == event_data("plotly_click")[["y"]]) %>% 
  select(value)

valueText <- paste0(Values[[1]] %>% na.omit(),collapse = "")
agg <- aggregate(handling~patient, data = patients10(), FUN = function(y)
{paste0(unique(y),collapse = "")})

currentPatient <- agg$patient[agg$handling == valueText]

patients10_final <- patients10() %>%
  filter(patient %in% currentPatient)
datatable(patients10_final, options = list(paging = FALSE, searching = 
FALSE))
})
}
shinyApp(ui, server)

推荐答案

由于您给出了如此庞大的示例并且很难解码代码中的每一行，因此我删除了一些代码以获取您选择的行事件.

Since you have given such a huge example and its hard to decode each and every line in your code, I have removed some code to get the rows for your selected event.

而不是 event_data("plotly_click")[["y"]]) 我使用 x 作为 vent_data("plotly_click")$x 并获得trace_id 使用 paste0 函数.

Instead of event_data("plotly_click")[["y"]]) I am using the x as vent_data("plotly_click")$x and getting the trace_id by using paste0 function.

我为获取行而修改的代码部分是:

The part of the code that I have modified to get the rows is:

 output$trace_table <- renderDataTable({
      req(event_data("plotly_click"))
       trace = event_data("plotly_click")$x
      Values <- dta() %>% 
        filter(variable == paste0("trace_",trace))# %>% 
        #select(value)


      datatable(Values)
      # valueText <- paste0(Values[[1]] %>% na.omit(),collapse = "")
      # agg <- aggregate(handling~patient, data = patients10(), FUN = function(y)
      # {paste0(unique(y),collapse = "")})
      # 
      # currentPatient <- agg$patient[agg$handling == valueText]
      # 
      # patients10_final <- patients10() %>%
      #   filter(patient %in% currentPatient)
      # 
      # datatable(patients10_final, options = list(paging = FALSE, searching = 
      #                                              FALSE))
    })

完整代码如下:

  library(shiny)
  library(shinydashboard)
  library(bupaR)
  library(lubridate)
  library(dplyr)
  library(xml2)
  library(ggplot2)
  library(ggthemes)
  library(glue)
  library(tibble)
  library(miniUI)
  library(tidyr)
  library(shinyWidgets)
  library(plotly)
  library(DT)
  library(splitstackshape)
  library(scales)
  dta <- reactive({
    tr <- data.frame(traces(patients, output_traces = T, output_cases = F))
    tr.df <- cSplit(tr, "trace", ",")
    tr.df$af_percent <-
      percent(tr.df$absolute_frequency/sum(tr.df$absolute_frequency))
    pos <- c(1,4:ncol(tr.df))
    tr.df <- tr.df[,..pos]
    tr.df <- melt(tr.df, id.vars = c("trace_id","af_percent"))
    tr.df
  })
  patients10 <- reactive({
    patients11 <- arrange(patients, patient)
    patients12 <- patients11 %>% arrange(patient, time,handling_id)
    patients12 %>%
      group_by(patient) %>%
      mutate(time = as.POSIXct(time, format = "%m/%d/%Y %H:%M"),diff_in_sec = time 
             - lag(time)) %>% 
      mutate(diff_in_sec = ifelse(is.na(diff_in_sec),0,diff_in_sec)) %>% 
      mutate(diff_in_hours = as.numeric(diff_in_sec/3600)) %>% 
      mutate(diff_in_days = as.numeric(diff_in_hours/24))
  })
  ui <- dashboardPage(
    dashboardHeader(title = "Sankey Chart"),
    dashboardSidebar(
      width = 0
    ),
    dashboardBody(
      box(title = "Sankey Chart", status = "primary",height = "455" ,solidHeader = 
            T,
          plotlyOutput("trace_plot")),

      box( title = "Case Summary", status = "primary", height = "455",solidHeader 
           = T, 
           dataTableOutput("trace_table"))
    )
  )
  server <- function(input, output) 
  { 
    output$trace_plot <- renderPlotly({
      mp1 = ggplot(data = dta(), aes(x = variable,y = trace_id, fill = value,
                                     label = value,
                                     text=paste("Variable:",variable,"<br> Trace 
                                                ID:",trace_id,"<br> 
                                                Value:",value,"<br> Actuals:",af_percent))) +
        geom_tile(colour = "white") +
        geom_text(colour = "white", fontface = "bold", size = 2) +
        scale_fill_discrete(na.value="transparent") +
        theme(legend.position="none") + labs(x = "Traces", y = "Activities")
      ggplotly(mp1, tooltip=c("text"), height = 516, width = 605)

    })
    output$trace_table <- renderDataTable({
      req(event_data("plotly_click"))
       trace = event_data("plotly_click")$x
      Values <- dta() %>% 
        filter(variable == paste0("trace_",trace))# %>% 
        #select(value)


      datatable(Values)
      # valueText <- paste0(Values[[1]] %>% na.omit(),collapse = "")
      # agg <- aggregate(handling~patient, data = patients10(), FUN = function(y)
      # {paste0(unique(y),collapse = "")})
      # 
      # currentPatient <- agg$patient[agg$handling == valueText]
      # 
      # patients10_final <- patients10() %>%
      #   filter(patient %in% currentPatient)
      # 
      # datatable(patients10_final, options = list(paging = FALSE, searching = 
      #                                              FALSE))
    })
  }
  shinyApp(ui, server)

希望对你有帮助！