shiny: checkboxGroupInput – R documentation

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checkboxGroupInput

Checkbox Group Input Control

Description

Create a group of checkboxes that can be used to toggle multiple choices independently. The server will receive the input as a character vector of the selected values.

Usage

checkboxGroupInput(
  inputId,
  label,
  choices = NULL,
  selected = NULL,
  inline = FALSE,
  width = NULL,
  choiceNames = NULL,
  choiceValues = 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 show checkboxes for. If elements of the list are named then that name rather than the value is displayed to the user. If this argument is provided, then `choiceNames` and `choiceValues` must not be provided, and vice-versa. The values should be strings; other types (such as logicals and numbers) will be coerced to strings.
`selected`	The values that should be initially selected, if any.
`inline`	If `TRUE`, render the choices inline (i.e. horizontally)
`width`	The width of the input, e.g. `'400px'`, or `'100%'`; see `validateCssUnit()`.
`choiceNames, choiceValues`	List of names and values, respectively, that are displayed to the user in the app and correspond to the each choice (for this reason, `choiceNames` and `choiceValues` must have the same length). If either of these arguments is provided, then the other must be provided and `choices` must not be provided. The advantage of using both of these over a named list for `choices` is that `choiceNames` allows any type of UI object to be passed through (tag objects, icons, HTML code, ...), instead of just simple text. See Examples.

Value

A list of HTML elements that can be added to a UI definition.

Server value

Character vector of values corresponding to the boxes that are checked.

Examples

## Only run examples in interactive R sessions
if (interactive()) {

ui <- fluidPage(
  checkboxGroupInput("variable", "Variables to show:",
                     c("Cylinders" = "cyl",
                       "Transmission" = "am",
                       "Gears" = "gear")),
  tableOutput("data")
)

server <- function(input, output, session) {
  output$data <- renderTable({
    mtcars[, c("mpg", input$variable), drop = FALSE]
  }, rownames = TRUE)
}

shinyApp(ui, server)

ui <- fluidPage(
  checkboxGroupInput("icons", "Choose icons:",
    choiceNames =
      list(icon("calendar"), icon("bed"),
           icon("cog"), icon("bug")),
    choiceValues =
      list("calendar", "bed", "cog", "bug")
  ),
  textOutput("txt")
)

server <- function(input, output, session) {
  output$txt <- renderText({
    icons <- paste(input$icons, collapse = ", ")
    paste("You chose", icons)
  })
}

shinyApp(ui, server)
}

shiny

Web Application Framework for R

v1.6.0

GPL-3 | file LICENSE

Authors

Winston Chang [aut, cre], Joe Cheng [aut], JJ Allaire [aut], Carson Sievert [aut], Barret Schloerke [aut], Yihui Xie [aut], Jeff Allen [aut], Jonathan McPherson [aut], Alan Dipert [aut], Barbara Borges [aut], RStudio [cph], jQuery Foundation [cph] (jQuery library and jQuery UI library), jQuery contributors [ctb, cph] (jQuery library; authors listed in inst/www/shared/jquery-AUTHORS.txt), jQuery UI contributors [ctb, cph] (jQuery UI library; authors listed in inst/www/shared/jqueryui/AUTHORS.txt), Mark Otto [ctb] (Bootstrap library), Jacob Thornton [ctb] (Bootstrap library), Bootstrap contributors [ctb] (Bootstrap library), Twitter, Inc [cph] (Bootstrap library), Prem Nawaz Khan [ctb] (Bootstrap accessibility plugin), Victor Tsaran [ctb] (Bootstrap accessibility plugin), Dennis Lembree [ctb] (Bootstrap accessibility plugin), Srinivasu Chakravarthula [ctb] (Bootstrap accessibility plugin), Cathy O'Connor [ctb] (Bootstrap accessibility plugin), PayPal, Inc [cph] (Bootstrap accessibility plugin), Stefan Petre [ctb, cph] (Bootstrap-datepicker library), Andrew Rowls [ctb, cph] (Bootstrap-datepicker library), Dave Gandy [ctb, cph] (Font-Awesome font), Brian Reavis [ctb, cph] (selectize.js library), Salmen Bejaoui [ctb, cph] (selectize-plugin-a11y library), Denis Ineshin [ctb, cph] (ion.rangeSlider library), Sami Samhuri [ctb, cph] (Javascript strftime library), SpryMedia Limited [ctb, cph] (DataTables library), John Fraser [ctb, cph] (showdown.js library), John Gruber [ctb, cph] (showdown.js library), Ivan Sagalaev [ctb, cph] (highlight.js library), R Core Team [ctb, cph] (tar implementation from R)

Initial release