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Circular Mean Difference

Source: R/statistics.R
circle_mean_diff.Rd

The circular mean difference is based on the sample circular distance

Usage

circular_mean_difference(x, w = NULL, axial = TRUE, na.rm = TRUE)

circular_mean_difference_alt(x, w = NULL, axial = TRUE, na.rm = TRUE)

Arguments

x

numeric vector. Values in degrees.

w

(optional) Weights. A vector of positive numbers and of the same length as x.

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

Mardia, K.V., and Jupp, P.E (1999). Directional Statistics, Wiley Series in Probability and Statistics. John Wiley & Sons, Inc., Hoboken, NJ, USA. doi:10.1002/9780470316979

See also

sample_circular_distance()

Examples

data("san_andreas")
circular_mean_difference(san_andreas$azi)
#> [1] 0.6951742
circular_mean_difference(san_andreas$azi, weighting(san_andreas$unc))
#> [1] 0.6662931

circular_mean_difference_alt(san_andreas$azi)
#> [1] 27.92053
circular_mean_difference_alt(san_andreas$azi, weighting(san_andreas$unc))
#> [1] 26.6433