r - Shiny slider 定制值

Question

我正在尝试为 Shiny slider 设置自定义值(1、5、10、15、20、25 和 30)。我尝试了 step 但结果要么 (0,5,10,15,20,25,30) 要么 (1,6,11,16,21,26,31)。有什么方法可以定义 slider 的自定义值吗？谢谢!

plotpath <- "/Volumes/share-ites-1-$/Projects/Scientifica/Simulations_Scientifica"

ui <- fluidPage(
     titlePanel("LandClim Simulations"),
     sidebarLayout(
          sidebarPanel(
               sliderInput(inputId = "temp", 
                           label = "Temperature increase:", 
                           value = 1, min = 1, max = 2,
                           step = 1, animate = TRUE ),
               sliderInput(inputId = "prec", 
                           label = "Precipitation change:", 
                           value = 0, min = -2, max = 2,
                           step = 1, animate = TRUE ),
               sliderInput(inputId = "decade", 
                           label = "Time (decade):", 
                           value = 1, min = 0, max = 30,
                           step = 5, animate = TRUE )
          ),
          mainPanel(imageOutput("image")) 
     )
)

server <- function(input, output) {
     output$image <- renderImage( deleteFile = FALSE, {
               return(list(
                    src = paste(plotpath,"/Temp",input$temp,"Prec",input$prec,"Dec",input$decade,".png",sep = ""),
                    contentType = "image/png"))
     } ) }

shinyApp(ui = ui, server = server)

Answer 1

shinyWidgets 包现在通过允许自定义值的 slider 为您解决了这个问题。第三个 slider 的更新代码如下所示:

shinyWidgets::sliderTextInput(inputId = "decade", 
  label = "Time (decade):", 
  choices = c(1,5,10,15,20,25,30))