Question

在闪亮的情况下，我需要选择一个数字范围，并将其用作另一个pickerInput中的选择。

首先我有：

               sliderTextInput(
                inputId = "size.range",
                label = "Choose a value:", 
                choices = c(1:100),
                selected =c(18,24),
                grid = TRUE )

在我拥有之后：

                      pickerInput(
                       inputId = "sample.histoall",
                       label = "Selected Size",
                       choices = list( XXXXXX ),
                       options = list(`actions-box` = TRUE),
                       multiple = TRUE)

用我替换XXXXXX的内容？

Answer 1

您可以观察数字范围的值，并在每次更改时更新pickerInput。您可以选择在pickerInput中显示两个返回值或返回值之间的范围。我在下面的示例中添加了这两个选项。

library(shiny)
library(shinyWidgets)

ui <- fluidPage(
  sliderTextInput(
    inputId = "size.range",
    label = "Choose a value:", 
    choices = c(1:100),
    selected =c(18,24),
    grid = TRUE ),
  pickerInput(
    inputId = "sample.histoall",
    label = "Selected Size",
    choices = list( '' ),
    options = list(`actions-box` = TRUE),
    multiple = TRUE),
  pickerInput(
    inputId = "sample.histoall.range",
    label = "Selected Size",
    choices = list( '' ),
    options = list(`actions-box` = TRUE),
    multiple = TRUE)
)

server <- function(input, output, session) {
  observe({
    updatePickerInput(session, 'sample.histoall', choices=input$size.range)
    updatePickerInput(session, 'sample.histoall.range', choices=as.numeric(input$size.range[1]):as.numeric(input$size.range[2]))
  })
}

shinyApp(ui, server)

如何在另一个ui pickerInput选择中使用数字输入？

1 个答案: