R Shiny Layouts

问题

In my shiny dashboard, I am currently plotting 1 bar graph above, and 4 pie charts below, as follows:

fluidRow(
  column(12, plotOutput("bar1"))),
  fluidRow(
    column(3, plotOutput("pie")),
    column(3, plotOutput("pie2")),
    column(3, plotOutput("pie3")),
    column(3, plotOutput("pie4")))

How would I go about plotting the bar chart alongside the 4 pie charts, with the pie charts arranged in a square?

Effectively the bar chart would be column(6,... and all of the pie charts would be column(3,... but I would need the bar chart to extend to 2 rows so the pie charts are plotted directly beside it.

回答1:

Standard plotOutput has a height of 400px

plotOutput(outputId, width = "100%", height = "400px", click = NULL,
dblclick = NULL, hover = NULL, hoverDelay = NULL, hoverDelayType = NULL, brush = NULL, clickId = NULL, hoverId = NULL, inline = FALSE)

So you can do the following:

library(shiny)

ui <- fluidPage(
  fluidRow(
    column(6, plotOutput("bar1",height = "800px")),
    column(6,
           column(6, plotOutput("pie")),
           column(6, plotOutput("pie2")),
           column(6, plotOutput("pie3")),
           column(6, plotOutput("pie4"))

    ))
)

server <- function(input, output) {

  output$bar1 <- renderPlot({
    hist(rnorm(1:100));box();grid()
  })
  output$pie <- renderPlot({
    plot(rnorm(1:100));box();grid()
  })
  output$pie2 <- renderPlot({
    plot(rnorm(1:100));box();grid()
  })
  output$pie3 <- renderPlot({
    plot(rnorm(1:100));box();grid()
  })
  output$pie4 <- renderPlot({
    plot(rnorm(1:100));box();grid()
  })
}

shinyApp(ui,server)

来源：https://stackoverflow.com/questions/50003279/r-shiny-layouts