format-number

Format a numeric break with optional thousands separator and decimals.

Returns a closure suitable for scale-*(labels: ...). Non-numeric values pass through str().

Usage

format-number(
  big-mark: ",",
  decimal-mark: ".",
  digits: auto,
  prefix: "",
  suffix: "",
)

Parameters

Parameter	Default	Description
big-mark	","	Thousands separator (e.g., "," for English).
decimal-mark	"."	Decimal separator (e.g., "." for English).
digits	auto	Decimal digits to keep, or auto to drop trailing zeros.
prefix	""	String prepended to every formatted value.
suffix	""	String appended to every formatted value.

Returns

A closure value => string.

Examples

Format y-axis breaks with English thousands separators.

#plot(
  data: ((x: 1, y: 1234.5), (x: 2, y: 23456.7)),
  mapping: aes(x: "x", y: "y"),
  layers: (geom-point(),),
  scales: (scale-y-continuous(labels: format-number()),),
  width: 8cm,
  height: 5cm,
)