radioButtons

0th

Percentile

Create radio buttons

Create a set of radio buttons used to select an item from a list.

Usage
radioButtons(inputId, label, choices, selected = NULL, inline = FALSE, width = NULL)
Arguments
inputId
The input slot that will be used to access the value.
label
Display label for the control, or NULL for no label.
choices
List of values to select from (if elements of the list are named then that name rather than the value is displayed to the user)
selected
The initially selected value (if not specified then defaults to the first value)
inline
If TRUE, render the choices inline (i.e. horizontally)
width
The width of the input, e.g. '400px', or '100%'; see validateCssUnit.
Details

If you need to represent a "None selected" state, it's possible to default the radio buttons to have no options selected by using selected = character(0). However, this is not recommended, as it gives the user no way to return to that state once they've made a selection. Instead, consider having the first of your choices be c("None selected" = "").

Value

A set of radio buttons that can be added to a UI definition.

See Also

updateRadioButtons

Other input.elements: actionButton, checkboxGroupInput, checkboxInput, dateInput, dateRangeInput, fileInput, numericInput, passwordInput, selectInput, sliderInput, submitButton, textAreaInput, textInput

Aliases
  • radioButtons
Examples
## Only run examples in interactive R sessions
if (interactive()) {

ui <- fluidPage(
  radioButtons("dist", "Distribution type:",
               c("Normal" = "norm",
                 "Uniform" = "unif",
                 "Log-normal" = "lnorm",
                 "Exponential" = "exp")),
  plotOutput("distPlot")
)

server <- function(input, output) {
  output$distPlot <- renderPlot({
    dist <- switch(input$dist,
                   norm = rnorm,
                   unif = runif,
                   lnorm = rlnorm,
                   exp = rexp,
                   rnorm)

    hist(dist(500))
  })
}

shinyApp(ui, server)
}
Documentation reproduced from package shiny, version 0.14.2, License: GPL-3 | file LICENSE

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