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## Computing market risk measures
## Long/Short risk
RiskFac <- -1.0 * sign(RE)
ES <- matrix(0, ncol = NAssets, nrow = size)
GpdEs <- function(x, nextremes = 30, method = "pwm", level = 0.95,
RiskFac){
x <- RiskFac * x
mod <- gpd(data = x, nextremes = nextremes, method = method)
GpdEs <- riskmeasures(mod, level)[3]
GpdEs
}
for(i in idx){
DatSub <- window(REDWeekly, start = spoints[i],
end = epoints[i])
FacSub <- window(RiskFac, start = epoints[i],
end = epoints[i])
for(j in 1:6){
x <- na.omit(DatSub[, j])
ES[i, j] <- GpdEs(x, RiskFac = c(FacSub[, j]))
}
}
ES <- timeSeries(ES, charvec = epoints)
colnames(ES) <- colnames(REDWeekly)
head(ES)
tail(ES)
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