VC2copula (version 0.1.2)

BB8Copula: Constructors for BB8 copulas

Description

Constructs an object of the '>BB8Copula (survival sur, 90 degree rotated r90 and 270 degree rotated r270) family for given parameters.

Usage

BB8Copula(param = c(1, 1))
surBB8Copula(param = c(1, 1))
r90BB8Copula(param = c(-1, -1))
r270BB8Copula(param = c(-1, -1))

Arguments

param

The parameter param defines the copula through theta and delta.

Value

One of the respective BB8 copula classes ('>BB8Copula, '>surBB8Copula, '>r90BB8Copula, '>r270BB8Copula).

References

Joe, H., (1997). Multivariate Models and Dependence Concepts. Monogra. Stat. Appl. Probab. 73, London: Chapman and Hall.

See Also

See also BB6Copula(), BB7Copula(), BB8Copula() and joeCopula() for further wrapper functions to the VineCopula-package().

Examples

# NOT RUN {
library(copula)

persp(BB8Copula(c(2, 0.9)), dCopula, zlim = c(0, 10))
persp(surBB8Copula(c(2, 0.9)), dCopula, zlim = c(0, 10))
persp(r90BB8Copula(c(-2, -0.9)), dCopula, zlim = c(0, 10))
persp(r270BB8Copula(c(-2, -0.9)), dCopula, zlim = c(0, 10))
# }