Description Usage Arguments Value References
Implementation of the relationship between theta and tau for a Frank copula. A simplification of an implementation of Diethelm Wuertz in the package "fCopulae". Original implementation falsely gives value of "Inf" for tau = -1, this has been fixed in this implementation.
1 | franktau(tau)
|
tau |
double. A numeric value for Kendall's tau. |
A value for the parameter theta based on method of moments estimation by the supplied Kendalls'tau.
Frees and Valdez (1998). Understanding Relationships Using Copulas. North American Actuarial Journal 2(1):1-25.
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