View source: R/plackettCopula.R
plackettCopula | R Documentation |
Constructs a Plackett copula (class "plackettCopula}"
) with its
corresponding parameter.
plackettCopula(param)
param |
a number (numeric vector of length one) specifying the non negative parameter. |
A Plackett copula object of class "plackettCopula"
.
Plackett, R. L. (1965). A Class of Bivariate Distributions. Journal of the American Statistical Association 60, 516–522.
The "plackettCopula"
class;
ellipCopula
, archmCopula
.
plackett.cop <- plackettCopula(param=2)
lambda(plackett.cop) # 0 0 : no tail dependencies
## For really large param values (here, 1e20 and Inf are equivalent):
set.seed(1); Xe20 <- rCopula(5000, plackettCopula(1e20))
set.seed(1); Xinf <- rCopula(5000, plackettCopula(Inf))
stopifnot(all.equal(Xe20, Xinf))
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