代码之家 › 专栏 › 技术社区 › SNT

如果用户输入已在shiny app中运行,则替换基于输出表的

shiny r

0

SNT · 技术社区 · 7 年前

shinyApp(
ui = basicPage(
  mainPanel(
    numericInput("model_input", label = h5("Total Budget"), value = 9000000),
    numericInput("iterations", label = h5("Iterations"), value = 900),
    actionButton("run", "Run"),
    actionButton("reset", "reset"),
    tableOutput("view")
  )
),
server = function(input, output) {
  runcar<- reactive({
    mtcars %>% mutate(new = mpg * input$model_input +input$iterations)
         })
  output$view <- renderTable({
    mtcars
  })
}

0 回复 | 直到 7 年前

1

tigerloveslobsters 7 年前

library(dplyr)
library(shiny)

shinyApp(
  ui = basicPage(
    mainPanel(
      numericInput("model_input", label = h5("Total Budget"), value = 9000000),
      numericInput("iterations", label = h5("Iterations"), value = 900),
      actionButton("run", "Run"),
      actionButton("reset", "reset"),
      tableOutput("view")
    )
  ),
  server = function(input, output) {
    v <- reactiveValues(data = mtcars)  # this makes sure that on load, your default data will show up

    observeEvent(input$run, {
      v$data <- mtcars %>% mutate(new = mpg * input$model_input +input$iterations)
    })

    observeEvent(input$reset, {
      v$data <- mtcars # your default data
     })  

    output$view <- renderTable({
      v$data
    })
  }
)