Nothing
EMSRb_internal = function (Fare = Fare, Mean = Mean, Var = Var, p_up = numeric(length(Fare)), cap = cap) {
N_FProd <- length(Fare)
# ASSURE CONSISTENCY OF THE INPUTS
tmp <- sort.int(Fare, decreasing=T, method = "sh", index.return=TRUE)
Fare <- tmp$x
ind <- tmp$ix
Mean <- Mean[ind]
Var <- Var[ind]
p_up <- p_up[ind]
# INITIALIZE PROTECTION LEVELS
p <- vector(mode="numeric", length(Fare))
for (i in 1:(length(Fare)-1)) {
# WEIGHTED AVERAGE REVENUE: wr
wr <- sum(Fare[1:i]*Mean[1:i])/sum(Mean[1:i])
# MEAN AGGREGATE DEMAND
X <- sum(Mean[1:i])
# STANDARD DEVIATION AGGREGATE DEMAND
Sigma <- sqrt(sum(Var[1:i]))
# COMPUTE CURRENT PROTECTION LEVEL
p[i] <- qnorm((1 / (1 - p_up[i+1])) * (1 - Fare[i+1]/wr), mean=X, sd=Sigma)
} # end for i
p[length(Fare)] <- cap
# INTEGER PROTECTION LEVELS
p <- ceiling(p)
p <- p * (p < cap) + cap * (p >= cap)
names(p) <- as.character(Fare)
return(p)
} # end function
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