Conversion between Kendall's tau and parameters — par_to_tau • rvinecopulib

# Conversion between Kendall's tau and parameters

Conversion between Kendall's tau and parameters

    par_to_tau(family, rotation, parameters)

    tau_to_par(family, tau)

## Arguments

family | a copula family (see `bicop_dist()`) or a bicop_dist object.
rotation | the rotation of the copula, one of `0`, `90`, `180`, `270`.
parameters | vector or matrix of copula parameters, not used when `family` is a `bicop_dist` object.
tau | Kendall's \(\tau\).

## Examples

    # the following are equivalent
    par_to_tau(bicop_dist("clayton", 0, 3))#> [1] 0.6par_to_tau("clayton", 0, 3)#> [1] 0.6
    tau_to_par("clayton", 0.5)#>      [,1]
    #> [1,]    2tau_to_par(bicop_dist("clayton", 0, 3), 0.5)#>      [,1]
    #> [1,]    2