Gumbel VaR
Estimates the EV VaR of a portfolio assuming extreme losses are Gumbel distributed, for specified confidence level and holding period.
GumbelESPlot2DCl(mu, sigma, n, cl, hp)
mu
: Location parameter for daily L/Psigma
: Assumed scale parameter for daily L/Pn
: size from which the maxima are drawncl
: VaR confidence levelhp
: VaR holding period# Plots ES against Cl GumbelESPlot2DCl(0, 1.2, 100, seq(0.8,0.99,0.02), 280)
Dinesh Acharya
Dowd, K. Measuring Market Risk, Wiley, 2007.
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