veedhl <-
function (ehat, center)
{
numc <- max(center)
hls <- c(0)
ehatp <- ehat
n <- length(ehat)
for (i in 1:numc) {
ehatc <- ehat[center == i]
hls[i] <- hlest(ehatc)
}
reff <- hls
sigb2 <- (pi/3) * ((disp(0, hls, hls, wscores)/numc)^2)
xmat <- model.matrix(~as.factor(center) - 1)
ehatp <- ehat - xmat %*% hls
sige2 <- (pi/3) * ((disp(0, ehatp, ehatp, wscores)/n)^2)
sigt2 <- sigb2 + sige2
rho <- sigb2/sigt2
vc <- c(sigt2, sigb2, sige2, rho)
list(vc = vc, reff = reff)
}
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