Define a scale for an aesthetic channel

Usage

scale(
  spec,
  aesthetic,
  type = "auto",
  domain = NULL,
  range = NULL,
  nice = TRUE,
  zero = FALSE,
  reverse = FALSE,
  label = NULL,
  format = NULL
)

Arguments

spec: A glyph_spec
aesthetic: Which channel: "x", "y", "color", "size", "shape", "alpha"
type: Scale type: "linear", "log", "sqrt", "time", "ordinal", "band", "quantize", "threshold"
domain: Explicit domain (data range). NULL for auto.
range: Explicit output range. For color: a palette name or vector.
nice: Round domain to nice values (TRUE/FALSE)
zero: Force zero in domain (TRUE/FALSE)
reverse: Reverse the scale
label: Axis/legend label (NULL for auto from column name)
format: Format string for tick labels (e.g. "$.2f", "%b %Y")

Value

Modified glyph_spec

Examples

glyph(mtcars, x = wt, y = mpg) |>
  mark_point(color = cyl) |>
  scale("y", "linear", zero = TRUE, label = "Miles per gallon") |>
  scale("color", "ordinal", range = "Set2")
#> <glyph_spec: 32 x 11, 1 mark(s)>