闪亮面板中的LaTeX公式 [英] LaTeX formula in Shiny panel

问题描述

我想在Shiny面板中显示-LaTeX格式的公式，但是找不到将textOutput与withMathJax组合的方法.我尝试了以下操作，但没有成功.任何帮助将不胜感激.

I want to display a -LaTeX formated- formula in a Shiny panel, but I can't find a way to combine textOutput with withMathJax. I tried the following but it didn't work. Any help would be gratefully appreciated.

-ui.r

...
    tabPanel("Diagnostics", h4(textOutput("diagTitle")),
withMathJax(textOutput("formula")),
),
...

-server.r

...
output$formula <- renderText({
    print(paste0("Use this formula: $$\\hat{A}_{\\small{\\textrm{M€}}} =", my_calculated_value,"$$"))
})
...

推荐答案

在UI端使用uiOutput在服务器端使用renderUI来获取动态内容.

Use uiOutput on the UI side and renderUI on the server side for dynamic content.

ui <- fluidPage(
  withMathJax(),
  tabPanel(
    title = "Diagnostics", 
    h4(textOutput("diagTitle")),
    uiOutput("formula")
  )
)

server <- function(input, output, session){
  output$formula <- renderUI({
    my_calculated_value <- 5
    withMathJax(paste0("Use this formula: $$\\hat{A}_{\\small{\\textrm{M€}}} =", my_calculated_value,"$$"))
  })
}

shinyApp(ui, server)

更多示例: http://shiny.leg.ufpr.br/daniel/019-mathjax/

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