cyl_cubsec {cylcop}

Construction of 'cyl_cubsec' Objects

Description

Constructs a circular-linear copula with cubic sections of class 'cyl_cubsec'.

Usage

cyl_cubsec(a = 1/(2 * pi), b = 1/(2 * pi))

Arguments

a

numeric value of the first parameter of the copula. It must be in [- 1 / (2 \pi)), 1 / (2 \pi))].

b

numeric value of the second parameter of the copula. It must be in [- 1 / (2 \pi)), 1 / (2 \pi))].

Value

An R object of class 'cyl_cubsec'.

References

Nelsen RB, Quesada-Molina JJ, Rodr\'iguez-Lallena JA (1997). “Bivariate copulas with cubic sections.” Journal of Nonparametric Statistics, 7(3), 205–220. ISSN 10485252, doi:10.1080/10485259708832700.

Hodel FH, Fieberg JR (2022). “Circular-Linear Copulae for Animal Movement Data.” Methods in Ecology and Evolution. doi:10.1111/2041-210X.13821.

Hodel FH, Fieberg JR (2021). “Cylcop: An R Package for Circular-Linear Copulae with Angular Symmetry.” bioRxiv. doi:10.1101/2021.07.14.452253, https://www.biorxiv.org/content/10.1101/2021.07.14.452253v3/.

Examples

cop <- cyl_cubsec(a = 0.1, b = -0.1)
if(interactive()){
 plot_cop_surf(copula = cop, type = "pdf", plot_type = "ggplot")
}