These are the psi, H, and kappa functions
of the IG and IGL copula families, but with inputs
needing to be vectors of the same length.
These functions are called by the R functions of the
same name, without the _vec suffix.
igl_gen_vec(x, alpha)igl_gen_D_vec(x, alpha)
igl_gen_inv_vec(p, alpha)
igl_kappa_vec(x, alpha)
igl_kappa_D_vec(x, alpha)
igl_kappa_inv_vec(p, alpha)
interp_gen_vec(x, eta, alpha)
interp_gen_inv_vec(p, eta, alpha)
interp_kappa_vec(x, eta, alpha)
interp_kappa_inv_vec(p, eta, alpha)
Function argument. Vector of non-negative values.
Function inverse argument. Vector of values between 0 and 1.
Function parameters. Vector of positive values.
igl_gen() and family;
dig_vec(), pcondig12_vec(), and qcondig12_vec().