circle_mean_diff function

Circular Mean Difference

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.

Returns

numeric

Examples

data("san_andreas")
circular_mean_difference(san_andreas$azi)
circular_mean_difference(san_andreas$azi, 1 / san_andreas$unc)

circular_mean_difference_alt(san_andreas$azi)
circular_mean_difference_alt(san_andreas$azi, 1 / san_andreas$unc)

References

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