Add quadrant lines to a radial plot — add_quadrant

Draws two dashed lines through the centre of the unit circle – one horizontal (0degrees/180degrees) and one vertical (90degrees/270degrees) – dividing the unit circle into four quadrants. The lines extend to the circumference (unit circle).

Usage

add_quadrant_lines(
  colour = "grey60",
  linewidth = 0.5,
  linetype = "dashed",
  color = NULL
)

Arguments

colour, color: Line colour. Default `"grey60"`. `color` is the American-spelling alias.
linewidth: Line width. Default `0.5`.
linetype: Line type. Default `"dashed"`.

Value

A `geom_segment()` layer.

Examples

library(ggplot2)
ggplot() + coord_fixed() + add_quadrant_lines()