sample_median function

Circular Sample Median and Deviation

Sample median direction for a vector of circular data

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.

• 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.

Returns

numeric

Examples

set.seed(1)
x <- rvm(n = 100, mean = 0, kappa = 10)
circular_sample_median(x)
circular_sample_median_deviation(x)

data("san_andreas")
circular_sample_median(san_andreas$azi)
circular_sample_median_deviation(san_andreas$azi)

References

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