Pickands dependence function as in Belzile (2014), Proposition 40 and Example 4
Returns the Pickands dependence function of the copula domain of attraction
of the survival copula, the scaled Dirichlet extreme value model. Currently only implemented in the bivariate case.
Setting rho=1
yields the same output as the function in the evd
package.
.pickands.dir.uni(t, alpha, rho)
value of Pickands function for the scaled extremal Dirichlet model
pseudo-angle in (0,1)
vector of Dirichlet allocations. Currently must be of length 2
index of regular variation parameter