R shiny summary_table out 不在 html 中呈现

R shiny summary_table out does not render in html

我有一个简单的应用程序来计算摘要,摘要部分工作正常。我怎么想将结果输出回 UI 作为 html。我无法让它与 renderUI 和 html 输出一起工作。如果我使用 rendertable 和 tableoutput,我得到的部分输出缺少 headers 并且 html 表未解析。有什么指点吗?

library(qwraps2) #for the summary table
library(shiny)
library(dplyr)

ui <- fluidPage( tabsetPanel(
   tabPanel("Summary", 
      # mainPanel(tableOutput('summarytab'))
      mainPanel(htmlOutput('summarytab'))
       )
  )
  )

server <- function(input, output){

  output$summarytab <- renderUI({

   our_summary1 <- 
    list("Miles per gallon" = 
         list("min" = ~ min(mpg), 
              "max" = ~ max(mpg),
              "mean (sd)" = ~ qwraps2::mean_sd(mpg)),
        "Cylinder" = 
         list("min" = ~ min(cyl), 
              "max" = ~ max(cyl),
              "mean (sd)" = ~ qwraps2::mean_sd(cyl))

    )  
   summary_table(filter(mtcars),our_summary1)
})

 } 

shinyApp(ui = ui, server = server)

哇,好难啊。这是我找到的解决方案。

library(qwraps2) 
options(qwraps2_markup = "markdown")
library(shiny)
library(dplyr)
library(knitr) # for knit2html

ui <- fluidPage( tabsetPanel(
  tabPanel("Summary", 
           # mainPanel(tableOutput('summarytab'))
           mainPanel(uiOutput('summarytab'))
  )
)
)

server <- function(input, output){

  output$summarytab <- renderUI({

    our_summary1 <- 
      list("Miles per gallon" = 
             list("min" = ~ min(mpg), 
                  "max" = ~ max(mpg),
                  "mean (sd)" = ~ qwraps2::mean_sd(mpg)),
           "Cylinder" = 
             list("min" = ~ min(cyl), 
                  "max" = ~ max(cyl),
                  "mean (sd)" = ~ qwraps2::mean_sd(cyl))

      )  
    stable <- summary_table(filter(mtcars),our_summary1)
    HTML(knit2html(text=capture.output(stable), fragment.only=TRUE))
    # do not forget 'capture.output'
  })

} 

shinyApp(ui = ui, server = server)

效果图不错:

PS: 看起来有 another possible rendering。但是我不知道怎么做,不知道用shiny能不能实现。