我有一个闪亮的应用程序显示一个可编辑的
rhandsontable
并在绘图中显示表格输出。只要我发送一个“完整的”反应性数据帧到
洗手间桌
但当我想将显示的内容
selectInput
值,应用程序将中断,并显示以下错误消息:
倾听
http://127.0.0.1:5362
警告:矩阵中的错误:“data”必须是矢量类型,为“null”
堆栈跟踪(最里面的第一个):
60:矩阵
59:
58:打电话
57:热天
56:Observerfunc[P:/Mango Engagement/00-Claims/00-Shining-Sprint3/20190211 Shining Breaked Reactive Values可编辑表格绘图。r 57]
1:RunAPP
错误:【请求读取】连接被对等方重置
你对怎么做有什么想法吗?在下面的脚本中,您可以通过注释/取消注释
react_df()
.
library(shiny)
library(rhandsontable)
library(dplyr)
library(ggplot2)
#### based on the SO code found here: https://stackoverflow.com/a/52607643/6327771
df <- data.frame(country = c(rep('US', 5), rep('UK', 5)),
date = rep(as.Date(c('2018-01-01', '2018-02-01', '2018-03-01', '2018-04-01', '2018-05-01')), 2),
val = rep(sample(6:8, size = 5, replace = T), 2))
ui <- fluidPage(
selectInput("country", "Choose the Country",
choices = df %>% unique() %>% pull(country),
selected = 'US',
multiple = FALSE),
rHandsontableOutput('table'), # editable table with bar heights
plotOutput('plot')#, # bar plot that takes values from the drop-down menu and the editable table
)
server <- function(input,output,session)({
#### REACTIVE INPUT: SUBSETTED VERSUS COMPLETE DATA ####
## subsetted version of react_df()
# react_df <- reactive({
# df %>%
# filter(country == input$country)
# })
## complete version of react_df()
react_df <- reactive({df})
values <- reactiveValues(data = NULL)
observe({
values$data <-react_df()
})
#observe the table
observe({
if(!is.null(input$table))
values$data <- hot_to_r(input$table)
})
# output the table
output$table <- renderRHandsontable({
req(values$data)
rhandsontable(values$data)
})
# update the plot
output$plot <- renderPlot({
req(values$data)
ggplot(values$data, aes(date, val)) +
geom_line() +
geom_point()
})
})
shinyApp(ui = ui, server = server)