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我有以下情节,我希望使它互动。更具体地说,我希望一个滑块的最大供应范围在60到120之间。我已经阅读了闪亮和ggvis文档,我无法实现它的工作。我在下面列出了一个尝试。使ggvis剧情与闪光反应
library(ggvis)
library(dplyr)
library(tidyr)
maximum_supply = input$maximum_supply
supply.function = function(supply)
60 - 60/maximum_supply * supply
data_frame(quantity = 0:maximum_supply) %>%
mutate(price = supply.function(quantity)) %>%
ggvis(~quantity, ~price) %>%
layer_lines()
shiny.R
library(shiny)
library(ggvis)
library(dplyr)
shinyServer(function(input, output) {
reactive({
maximum_supply = 120
supply.function = function(supply)
60 - 60/maximum_supply * supply
data_frame(quantity = 0:maximum_supply) %>%
mutate(price = supply.function(quantity)) %>%
ggvis(~quantity, ~price) %>%
layer_lines() %>%
bind_shiny("ggvis", "ggvis_ui")
})
})
ui.R
library(shiny)
library(ggvis)
library(dplyr)
shinyUI(fluidPage(
titlePanel("Example"),
sidebarLayout(
sidebarPanel(
sliderInput("maximum_supply",
"Maximum Supply",
min = 60,
max = 120,
value = 90),
),
mainPanel(
uiOutput("ggvis_ui"),
ggvisOutput("ggvis")
)
)
))
创建一个新的数据框 – bramtayl