cyl_copula-class {cylcop}

An S4 Class of Bivariate Copulas on the Cylinder

Description

The class 'cyl_copula' follows somewhat the structure of the class 'Copula' of the package 'copula'. It contains circular-linear copulas.

Slots

name

character string holding the name of the copula.

parameters

numeric vector holding the parameter values.

param.names

character vector holding the parameter names.

param.lowbnd

numeric vector holding the lower bounds of the parameters.

param.upbnd

numeric vector holding the upper bounds of the parameters.

Extended by

'cyl_copula' is extended by the following classes:

• 'cyl_vonmises': von Mises copulas.

• 'cyl_quadsec': Copulas with quadratic sections.

• 'cyl_cubsec': Copulas with cubic sections.

• 'cyl_rot_combine': Linear combinations of copulas and their 180 degree rotations.

• 'cyl_rect_combine': Rectangular patchwork copulas.

Objects from the Class

Objects are created by the functions cyl_vonmises(), cyl_quadsec(), cyl_cubsec(), cyl_rot_combine(), and cyl_rect_combine().

References

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_quadsec(0.1)
is(cop)