Sample Circular Median and Deviation — sample

Sample median direction for a vector of circular data

Usage

circular_sample_median(x, axial = TRUE, na.rm = TRUE)

circular_sample_median_deviation(x, axial = TRUE, na.rm = TRUE)

Arguments

x: numeric vector. Values in degrees, for which the mean, median or standard deviation are required.
axial: logical. Whether the data are axial, i.e. pi-periodical (TRUE, the default) or directional, i.e. \(2 \pi\)-periodical (FALSE).
na.rm: logical value indicating whether NA values in x should be stripped before the computation proceeds.

Value

numeric

References

N.I. Fisher (1993) Statistical Analysis of Circular Data, Cambridge University Press.

Examples

set.seed(1)
x <- rvm(n = 100, mean = 0, kappa = 10)
circular_sample_median(x)
#> [1] 175.2845
circular_sample_median_deviation(x)
#> [1] 12.74011

data("san_andreas")
circular_sample_median(san_andreas$azi)
#> [1] 9
circular_sample_median_deviation(san_andreas$azi)
#> [1] 19.77709