问在Shiny中使用迷你图呈现datatable

EN

# dependencies
  require(sparkline)
  require(DT)
  require(shiny)

# create data with sparklines
  spark_data <- data.frame(
    id = c('spark1', 'spark2'),
    spark = c(
      spk_chr(values = 1:3, elementId = 'spark1'),
      spk_chr(values = 3:1, elementId = 'spark2')
    )
  )

# render in RStudio viewer (this works)
  tbl <- datatable(spark_data, escape = FALSE)
  spk_add_deps(tbl)

# render in Shiny (no sparklines rendered in DT)
  ui <- fluidPage(
      sparklineOutput("test_spark"),
      dataTableOutput("tbl")
  )

  server <- function(input, output) {
    # sparkline outside DT (works fine) - also ensures sparkline dependencies are attached
      output$test_spark <- renderSparkline(sparkline(1:3))

    # sparkline inside DT (does not render)
      output$tbl <- renderDataTable(
        expr = spark_data,
        escape = FALSE
      )
  }

  shinyApp(ui = ui, server = server)