Rug / tick layer — mark

Adds marginal tick marks along the axes: one short segment per observation. Use for 1D marginals under a histogram or density, censoring ticks in survival timelines, or exact data positions behind a smoothed curve.

Usage

mark_rug(
  plot,
  mapping = NULL,
  data = NULL,
  position = NULL,
  ...,
  sides = "bl",
  length = NULL,
  rasterize = FALSE,
  rasterize_dpi = 300,
  rasterize_dev = "cairo"
)

Arguments

plot: A plotit object
mapping: Optional new aesthetics
data: Optional data for this layer
position: Position adjustment.
...: Other arguments passed to geom_rug
sides: Which sides to draw on: any combination of "b" (bottom), "l" (left), "t" (top), "r" (right). Default "bl".
length: Tick length as a fraction of the panel (default 0.03).
rasterize: If TRUE, rasterize via ggrastr::rasterise().
rasterize_dpi: DPI for rasterization (default 300).
rasterize_dev: Graphics device for rasterization (default "cairo").

Value

Modified plotit object

References

Vega-Lite: Rule (marginal tick pattern)

AntV G2: Range (brush ticks)

Examples

plotit(faithful, encode(x = eruptions)) |>
  mark_histogram(bins = 20) |>
  mark_rug()


# top rug to frame a density
plotit(faithful, encode(x = eruptions)) |>
  mark_density() |>
  mark_rug(sides = "t", color = "#E15759")


# two 1D marginals beside a scatter
plotit(iris, encode(x = Sepal.Width, y = Sepal.Length)) |>
  mark_point(alpha = 0.5) |>
  mark_rug(sides = "bl")