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Mean direction layer

Source: R/geom-mean-direction.R
geom_mean_direction.Rd

Draws a radial segment at the circular mean direction. The segment length can be fixed or proportional to the mean resultant length.

Usage

geom_mean_direction(
  mapping = NULL,
  data = NULL,
  stat = "mean_direction",
  position = "identity",
  ...,
  length = c("resultant", "fixed"),
  radius = NULL,
  conf.int = FALSE,
  level = 0.95,
  axial = FALSE,
  arrow = TRUE,
  na.rm = FALSE,
  show.legend = NA,
  inherit.aes = TRUE
)

Arguments

mapping, data, position, show.legend, inherit.aes

Standard ggplot2 layer arguments.

stat

Statistical transformation, usually "mean_direction".

...

Additional arguments passed to the layer.

length

Should the displayed segment length be proportional to the mean resultant length ("resultant") or fixed ("fixed")?

radius

Optional maximum displayed radius.

conf.int

Should approximate confidence limits be computed?

level

Confidence level used when conf.int = TRUE.

axial

Should the data be treated as axial, modulo pi?

arrow

Should a small arrow head be drawn?

na.rm

Should missing values be silently removed?

Value

A ggplot2 layer.

See also

Other mean direction layers: stat_mean_direction()

Examples

ggplot2::ggplot(wind_directions, ggplot2::aes(x = direction)) +
  geom_rose(bins = 16) +
  geom_mean_direction()