Update layout (UI)

You can use layout functions provided by Shiny to arrange the UI elements. In this case, we want to use a sidebarLayout(), where the input is placed inside a sidebarPanel() and the output is placed inside the mainPanel(). You can use this template to update the layout of your app.

sidebarLayout(
  sidebarPanel(p("This goes into the sidebar on the left")),
  mainPanel(p("This goes into the panel on the right"))
)

We have pre-loaded the shiny and ggplot2 packages for you. Note that p('hello') returns an HTML paragraph with the text "hello".

本练习是课程的一部分

Building Web Applications with Shiny in R

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练习说明

Place the textInput() inside a sidebarPanel().
Place the plotOutput() inside a mainPanel().
Place both panels inside a sidebar layout: sidebarLayout(___ , ___).

交互式实操练习

通过完成这段示例代码来试试这个练习。

ui <- fluidPage(
  titlePanel("Baby Name Explorer"),
  # CODE BELOW: Add a sidebarLayout, sidebarPanel, and mainPanel
  
  textInput('name', 'Enter Name', 'David'),
  plotOutput('trend')
  
)

server <- function(input, output, session) {
  output$trend <- renderPlot({
    ggplot()
  })
}

shinyApp(ui = ui, server = server)

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