Computes the Kappa risk measure for a given ditribution
kappag(spec, alpha, n, a, b, ...)
a character string specifying the distribution (for example, "norm" corresponds to the standard normal)
a real valued parameter, see Chan and Nadarajah for details
a positive integer valued parameter, see Chan and Nadarajah for details
the lower end point of the distribution specified by spec
the upper end point of the distribution specified by spec
other parameters
An object of the same length as alpha
, giving the Kappa risk measure of the distribution specified by spec
S. Chan and S. Nadarajah, Risk: An R package for risk measures, submitted
P. D. Kaplan and J. A. Knowles, Kappa: A generalized downside risk-adjusted performance measure, Miscellaneous Publication, Morningstar Associates and York Hedge Fund Strategies, 2004