Circular-linear correlation
It calculates the squared correlation between a circular and one or more linear variables.
circlin.cor(theta, x)
theta |
A circular variable expressed in radians. |
x |
The linear variable or a matrix containing many linear variables. |
The squared correlation between a circular and one or more linear variables is calculated.
A matrix with as many rows as linear variables including:
R-squared |
The value of the squared correlation. |
p-value |
The p-value of the zero correlation hypothesis testing. |
Michail Tsagris
R implementation and documentation: Michail Tsagris <mtsagris@yahoo.gr>
Mardia, K. V. and Jupp, P. E. (2000). Directional statistics. Chicester: John Wiley & Sons.
phi <- rvonmises(50, 2, 20, rads = TRUE) x <- 2 * phi + rnorm(50) y <- matrix(rnorm(50 * 5), ncol = 5) res<-circlin.cor(phi, x) res<-circlin.cor(phi, y) y <- NULL
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