Computes one mean direction per group, with resultant length and an optional approximate confidence arc.
Usage
stat_mean_direction(
mapping = NULL,
data = NULL,
geom = "segment",
position = "identity",
...,
length = c("resultant", "fixed"),
radius = NULL,
conf.int = FALSE,
level = 0.95,
axial = FALSE,
na.rm = FALSE,
show.legend = NA,
inherit.aes = TRUE
)Arguments
- mapping, data, geom, position, show.legend, inherit.aes
Standard ggplot2 layer arguments.
- ...
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?- na.rm
Should missing values be silently removed?
Value
A ggplot2 layer. Computed variables include x, xend, y, yend,
mean, R, Rbar, n, kappa, ci_low and ci_high.
See also
Other mean direction layers:
geom_mean_direction()
