Description Usage Arguments Value See Also
Computes the (first) copula parameter of a bivariate copula for a given value of the calibration function (eta).
1 | BiCopEta2Par(family, eta)
|
family |
A copula family:
|
eta |
The calibration function. |
The value of the first copula parameter, depending on the copula parameter and family as:
1
Gaussian, f(x) = tanh(x/2)
2
Student t, f(x) = tanh(x/2)
301
Double Clayton type I (standard and rotated 90 degrees),
f(x) = x
302
Double Clayton type II (standard and rotated 270 degrees),
f(x) = x
303
Double Clayton type III (survival and rotated 90 degrees),
f(x) = x
304
Double Clayton type IV (survival and rotated 270 degrees),
f(x) = x
401
Double Gumbel type I (standard and rotated 90 degrees),
f(x) = x*(1+abs(x))/abs(x)
402
Double Gumbel type II (standard and rotated 270 degrees),
f(x) = x*(1+abs(x))/abs(x)
403
Double Gumbel type III (survival and rotated 90 degrees),
f(x) = x*(1+abs(x))/abs(x)
404
Double Gumbel type IV (survival and rotated 270 degrees)
f(x) = x*(1+abs(x))/abs(x)
.
BiCopEta2Par
or BiCopPar2Tau
and
BiCopTau2Par
from
VineCopula
.
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