Modified Shiny numericInput

Create an input control for entry of numeric values. Contrary to the vanilla numericInput, it allows no initial value and placeholder content.

Usage

numInput(
  inputId,
  label,
  value = NA,
  placeholder = NULL,
  min = NA,
  max = NA,
  step = NA,
  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.

value

Initial value.

placeholder

A character string giving the user a hint as to what can be entered into the control. Internet Explorer 8 and 9 do not support this option.

min

Minimum allowed value

max

Maximum allowed value

step

Interval to use when stepping between min and max

width

The width of the input, e.g. '400px', or '100%'; see validateCssUnit().

Value

A numeric input control that can be added to a UI definition. It should be noted, that empty input will generate NA, not NULL, as in other shinyInputs

Server value

A numeric vector of length 1.

Examples

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

ui <- fluidPage(
  numInput("obs", "Observations:", placeholder = "Enter value", min = 1, max = 100),
  verbatimTextOutput("value")
)
server <- function(input, output) {
  output$value <- renderText({ input$obs })
}
shinyApp(ui, server)
}