Position scales

Declare a position scale to override the trained default. scale_x_continuous() / scale_y_continuous() handle numeric (and date/time) axes; scale_x_discrete() / scale_y_discrete() handle categorical (band) axes and let you set the level order via limits.

Usage

scale_x_continuous(
  plot,
  limits = NULL,
  trans = "identity",
  breaks = NULL,
  labels = NULL,
  name = NULL
)

scale_y_continuous(
  plot,
  limits = NULL,
  trans = "identity",
  breaks = NULL,
  labels = NULL,
  name = NULL
)

scale_x_discrete(plot, limits = NULL, name = NULL)

scale_y_discrete(plot, limits = NULL, name = NULL)

Arguments

plot

A PlotSpec.

limits

For continuous scales a numeric length-2 domain c(min, max); for discrete scales a character vector of levels (sets order / subset). NULL trains from the data.

trans

Transformation: "identity" (default), "log10", "sqrt", "reverse", or a scales::transform_log10()-style transform object.

breaks, labels

Explicit break positions (data units) and their labels, or NULL to compute them.

name

Axis title, or NULL to derive from the encoding.

Value

The modified PlotSpec.

Examples

vplot(mtcars) |> mark_point(x = wt, y = mpg) |> scale_x_continuous(limits = c(0, 6))

vplot(mtcars) |> mark_point(x = wt, y = mpg) |> scale_y_continuous(trans = "sqrt")