Nothing
QTE.Out <-
function (d.hat, u, Q, spar = 0.45)
{
OUT <- list()
dhat <- c(d.hat, tail(d.hat, 1))
Qs <- c(0, u)
if (is.na(spar)) {
lower <- smooth.spline(Qs, c(Q[1, ], tail(Q[1, ], 1)),
cv = F)
upper <- smooth.spline(Qs, c(Q[2, ], tail(Q[2, ], 1)),
cv = F)
sparL <- lower$spar
sparU <- upper$spar
}
else {
lower <- smooth.spline(Qs, c(Q[1, ], tail(Q[1, ], 1)),
spar = spar)
upper <- smooth.spline(Qs, c(Q[2, ], tail(Q[2, ], 1)),
spar = spar)
sparL <- sparU <- spar
}
above <- below <- c()
for (i in 1:length(dhat)) {
Vi <- dhat[i]
Qi <- Qs[i]
Li <- predict(lower, Qi)$y
Ui <- predict(upper, Qi)$y
if (Vi < Li) {
below <- c(below, i)
}
if (Vi > Ui) {
above <- c(above, i)
}
}
below_jumps <- below[which(diff(below) != 1)]
above_jumps <- above[which(diff(above) != 1)]
below_endpoints <- c(below_jumps, below[(below_jumps + 1)])
above_endpoints <- c(above_jumps, above[(above_jumps + 1)])
below_endpoints <- sort(c(below_jumps, min(below), max(below)))
above_endpoints <- sort(c(above_jumps, min(above), max(above)))
seqle_below <- seqle(below)
seqle_above <- seqle(above)
below_ints <- c()
above_ints <- c()
for (i in 1:length(seqle_below$values)) {
below_ints <- c(below_ints, seqle_below$values[i], (seqle_below$values[i] +
seqle_below$lengths[i] - 1))
}
for (i in 1:length(seqle_above$values)) {
above_ints <- c(above_ints, seqle_above$values[i], (seqle_above$values[i] +
seqle_above$lengths[i] - 1))
}
below_ints <- sort(below_ints)
above_ints <- sort(above_ints)
mat_below <- t(matrix(Qs[below_ints], 2))
mat_above <- t(matrix(Qs[above_ints], 2))
OUT$below_ints <- below_ints
OUT$above_ints <- above_ints
OUT$mat_below <- mat_below
OUT$mat_above <- mat_above
OUT$sparU <- sparU
OUT$sparL <- sparL
return(OUT)
}
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