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R
circular

angular.variance

A measure of variance for Circular Data

Description

Returns twice one minus the mean resultant length divided by the sample size of a vector of circular data.

Usage

angular.variance(x, na.rm = FALSE)

Arguments

x

a vector. The object is coerced to class circular.
na.rm

logical, indicating if NA's should be omitted.

Value

Returns twice one minus the mean resultant length divided by the sample size.

Author(s)

Claudio Agostinelli

References

Batchelet, E. (1981) Circular Statistics in Biology. Academic Press, London.

Jammalamadaka, S. Rao and SenGupta, A. (2001). Topics in Circular Statistics, Section 1.3, World Scientific Press, Singapore.

Zar, J.H. (2010) Biostatistical Analysis. Fifth edition. Pearson Educational International.

See Also

Examples

x <- rvonmises(n=100, mu=circular(0), kappa=1)
angular.variance(x)
circular

Circular Statistics

v0.4-93
GPL-2
Authors
Ulric Lund <ulund@calpoly.edu> [aut], Claudio Agostinelli <claudio.agostinelli@unitn.it> [aut, cre], Hiroyoshi Arai <h_arai@aoni.waseda.jp> [ctb], Alessando Gagliardi <gagliardi@stud.unive.it> [ctb], Eduardo Garcia Portugues <edgarcia@est-econ.uc3m.es> [ctb], Dimitri Giunchi <dimitri.giunchi@unipi.it> [ctb], Jean-Olivier Irisson <irisson@normalesup.org> [ctb], Matthew Pocernich <pocernic@ucar.edu> [ctb], Federico Rotolo [ctb]
Initial release
2017-06-26

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