Polar coordinates with Facet support — facet

Draw each panel in a sector of the polar coordinate system. If facet_sector() is used in a ggplot, the coordinate system must be created with coord_circle() or coord_radial().

Usage

facet_sector(
  facets,
  sector_spacing = pi/180,
  drop = TRUE,
  radial = deprecated(),
  spacing_theta = deprecated()
)

Arguments

facets

A set of variables or expressions quoted by vars() and defining faceting groups on the rows or columns dimension. The variables can be named (the names are passed to labeller).

For compatibility with the classic interface, can also be a formula or character vector. Use either a one sided formula, ~a + b, or a character vector, c("a", "b").

sector_spacing

The size of spacing between different panel. A numeric of the radians or a rel() object.

drop

If TRUE, the default, all factor levels not used in the data will automatically be dropped. If FALSE, all factor levels will be shown, regardless of whether or not they appear in the data.

radial

Please add the coordinate system directly to the ggplot instead.

spacing_theta

Please use sector_spacing instead.

Examples

ggplot(mtcars, aes(disp, mpg)) +
    geom_point() +
    facet_sector(vars(cyl)) +
    coord_circle(
        start = -0.4 * pi, end = 0.4 * pi, inner.radius = 0.3,
        outer.radius = 0.8, expand = TRUE
    )