我正在设置一个带有 Shiny 仪表板的 Web 应用程序,以显示来自谷歌分析的数据。
我想让用户选择他想通过表单(plot1,plot2,plot3)在哪个图中显示数据。
当我单击操作按钮(类似于 output$(input$select_plot))时,我想检索位置(input$select_plot)并在所选图中生成数据:
My form
我尝试了不同的方法(响应式(Reactive))但仍然不起作用,我不知道这是否可能
这是我的代码:
用户界面
tabItem("perso2", h1("Sub-item 2 tab content"),
hr(),
fluidRow(
column(3, wellPanel(
selectInput("select2", label = h3("Metrics"),
multiple = TRUE,
choices = list("Users" = "users",
"New users" = "newUsers",
"Sessions" = "sessions",
"Session Duration" = "sessionDuration",
"Average session" = "avgSessionDuration"),
selected = 1),
selectInput("select_plot", label = h3("Select box"),
choices = list("Choice 1" = "plot1", "Choice 2" = "plot2", "Choice 3" = "plot3")),
actionButton("do", "Click Me")
))),
fluidRow(
column(width = 4, plotOutput("plot1")),
column(width = 4, plotOutput("plot2")),
column(width = 4, plotOutput("plot3"))
)
)
和服务器.R
dataaa <- eventReactive(input$do, {
token <- auth$token()
time <- rollupGA(GAProfileTable = getprofile(),
start_date = "2019-04-04",
end_date = "2019-04-11",
metrics = paste("ga:",input$select2, collapse=NULL, sep=""),
ga = token)
time[,c('date',input$select2)]
})
selected_plot <- reactive({ input <- select_plot })
output$selected_plot <- renderPlot({
validate(
need(getprofile(), "Authentificate to see"))
plot(dataaa())
})
如果用户选择“Choice 3”,我希望在 plotOutput("plot3") 中生成一个绘图,
有解决方案或其他方法吗?
谢谢
最佳答案
这是一个示例应用程序,可让您选择哪个绘图。
技巧:
actionButton
在 react 性中的行为),因此每当该计数器更改时,它都会更新其绘图 library(shiny)
myplot <- function(s) {
w <- strwidth(s)
plot(0, type = 'n', xlim = 0:1, ylim = 0:1, axes = FALSE, ann = FALSE)
box()
text(0.5, 0.5, labels = s, cex = 0.5/strwidth(s))
}
ui <- fluidPage(
fluidRow(
textInput("words", label = NULL, placeholder = "Something to say?"),
selectInput("which", "Which plot?", choices = c("plot1", "plot2"), selected = "plot1"),
actionButton("go", "Say it!")
),
fluidRow(
column(width = 4, plotOutput("plot1")),
column(width = 4, plotOutput("plot2"))
)
)
server <- function(input, output, session) {
whichplot <- reactiveValues(plot1 = 0, plot2 = 0)
observeEvent(input$go, {
req(input$which)
whichplot[[ input$which ]] <- whichplot[[ input$which ]] + 1
})
output$plot1 <- renderPlot({
req(whichplot$plot1, isolate(input$words))
message("plotting 1")
myplot(isolate(input$words))
})
output$plot2 <- renderPlot({
req(whichplot$plot2, isolate(input$words))
message("plotting 2")
myplot(isolate(input$words))
})
}
shinyApp(ui, server)
关于r - 是否可以使用输入变量选择绘图的位置?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/56295658/