numericInput(inputId, label, value, min = NA, max = NA, step = NA)
Creates a box you can use to enter numeric values. You can type a number or scroll through values with the box's scroll bar. The widget will pass the value shown in the box to the server as a double (e.g. number).
inputId
The name to use to look up the value of the widget (as a character string)
label
A label to display above the number field
value
The initial number to display in the number field
min
The minimum number that can be selected
max
The maximum number that can be selected
step
The amount to increment the value by when a user clicks up or down on the scroll bar.
Make this widget by copying the code in ui.R.