R闪亮:动力大小的情节 [英] R Shiny: plot with dynamical size
问题描述
这是我的代码:
$ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $
sliderInput(height,Plot Height,min = 10,max = 20,value = 15)
)
mainPanel(
plotOutput(plot ,width =15cm,height =15cm)
)
}
我设置15厘米只是为了看情节。
我尝试了不同的方法来从sliderInputs获取数据并将其带入plotOutput。我尝试input.height,input $ heigt,但没有任何工作。
您必须使用服务器中的输入这里有一个解决方案:
宽度和高度的单位必须是一个有效的CSS单位,我不知道cm是有效的,使用%或px(或int,它会被强制为一个字符串,px在结尾)
)runApp(
ui = pageWithSidebar(
headerPanel(Test),
sidebarPanel(
sliderInput width,Plot Width(%),min = 0,max = 100,value = 100),
sliderInput(height,Plot Height(px),min = 0,max = ,value = 400)
),
mainPanel(
uiOutput(plot.ui)
)
),
server = function(input,输出,会话){
输出$ plot.ui< - renderUI({
plotOutput(plot,width = paste0(input $ width,%),heigh t =输入$ height)
})
输出$ plot < - renderPlot({
plot(1:10)
})
}
))
I wanna have a plot with dynamic size and all should happen in the shinyUI.
Here is my code:
shinyUI{
sidebarPanel(
sliderInput("width", "Plot Width", min = 10, max = 20, value = 15),
sliderInput("height", "Plot Height", min = 10, max = 20, value = 15)
)
mainPanel(
plotOutput("plot", width="15cm", height="15cm")
)
}
I set "15cm" only to see the plot.
I tried different methods to take the data from the sliderInputs and bring it to the plotOutput. I tried "input.height", "input$heigt" but nothing worked.
You must use the inputs in the server side, for example here is one solution :
And the unit of the width and height must be a valid CSS unit, i'm not sure that "cm" is valid, use "%" or "px" (or an int, it will be coerced to a string with "px" at the end)
library(shiny)
runApp(list(
ui = pageWithSidebar(
headerPanel("Test"),
sidebarPanel(
sliderInput("width", "Plot Width (%)", min = 0, max = 100, value = 100),
sliderInput("height", "Plot Height (px)", min = 0, max = 400, value = 400)
),
mainPanel(
uiOutput("plot.ui")
)
),
server = function(input, output, session) {
output$plot.ui <- renderUI({
plotOutput("plot", width = paste0(input$width, "%"), height = input$height)
})
output$plot <- renderPlot({
plot(1:10)
})
}
))
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