Nothing
lsdnorm <- function(x, mean=0, sd=1, tau=0.2) {
if (tau >= 1 | tau <= 0)
stop("quantile order of 'tau' must be in the range (0,1). For order equal to 1 use function 'sdnorm'")
tau <- 1-(1-tau)/2
tau <- qnorm(tau, 0, sqrt(2)*sd)
ldnorm.int <- function(x, tau, mean, sd) {
pdf <- function(x) dnorm(x,mean,sd)
cdf <- function(x) pnorm(x,mean,sd)
acca <- function(x) cdf(x+tau)+cdf(x-tau)-2*cdf(x)
int1 <- function(t) cdf(t+tau)*pdf(t)
integr1 <- function(x) integrate(int1,x-tau,x)[1]
int2 <- function(t) cdf(t-tau)*pdf(t)
integr2 <- function(x) integrate(int2,x,x+tau)[1]
a <- integr1(x); b <- integr2(x)
res <- a$value-b$value+cdf(x)*acca(x)
return(res)
}
y <- sapply(X=x, FUN=ldnorm.int, simplify=TRUE, tau=tau, mean=mean, sd=sd)
return(y)
}
hsnorm <- function(x, mean=0, sd=1, tau=0.2) {
if (tau >= 1 | tau <= 0)
stop("quantile order of 'tau' must be in the range (0,1)")
tau <- 1-(1-tau)/2
tau <- qnorm(tau, 0, sqrt(2)*sd)
acca <- pnorm(x+tau, mean, sd)+pnorm(x-tau, mean, sd)-2*pnorm(x, mean, sd)
return(acca)
}
sdnorm <- function(x, mean=0, sd=1) {
y <- 2*pnorm(x, mean, sd)*pnorm(x, mean, sd, lower.tail=FALSE)
return(y)
}
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