Directional: circ.cors1 – R documentation

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circ.cors1

Circular correlations between two circular variables

Circular correlations between two circular variables.

circ.cors1(theta, phi)

`theta`	The first cirular variable expressed in radians, not degrees.
`phi`	The other cirular variable. In the case of "circ.cors1" this is a matrix with many circular variables. In either case, the values must be in radians, not degrees.

Correlation for circular variables using the cosinus and sinus formula of Jammaladaka and SenGupta (1988).

A matrix with two columns, the correlations and the p-values.

Michail Tsagris

R implementation and documentation: Michail Tsagris mtsagris@uoc.gr

Jammalamadaka, R. S. and Sengupta, A. (2001). Topics in circular statistics. World Scientific.

Jammalamadaka, S. R. and Sarma, Y. R. (1988). A correlation coefficient for angular variables. Statistical Theory and Data Analysis, 2:349–364.

y <- runif(50, 0, 2 * pi)
x <- matrix(runif(50 * 10, 0, 2 * pi), ncol = 10)
circ.cors1(y, x)

A Collection of R Functions for Directional Data Analysis

v4.9

GPL-2

Authors

Michail Tsagris, Giorgos Athineou, Anamul Sajib, Eli Amson, Micah J. Waldstein

Initial release

2021-03-26