Nothing
aul<-function (formula, d, data = NULL, na.action, ...)
{
d <- as.matrix(d)
d1 <- d[1L]
aules <- function(formula, d1, data = NULL, na.action) {
cal <- match.call(expand.dots = FALSE)
mat <- match(c("formula", "data", "na.action"), names(cal))
cal <- cal[c(1L, mat)]
cal[[1L]] <- as.name("model.frame")
cal <- eval(cal)
y <- model.response(cal)
md <- attr(cal, "terms")
x <- model.matrix(md, cal, contrasts)
s <- t(x) %*% x
xin <- solve(s)
bb <- xin %*% t(x) %*% y
I <- diag(NCOL(x))
fd <- solve(s + I) %*% (s + d1 * I)
bal <- (I - (1 - d1)^2 * solve(s + I) %*% solve(s + I)) %*%
bb
colnames(bal) <- c("Estimate")
ev <- (t(y) %*% y - t(bb) %*% t(x) %*% y)/(NROW(x) -
NCOL(x))
ev <- diag(ev)
dbd <- ev * (I + (1 - d1) * solve(s + I)) %*% fd %*%
xin %*% fd %*% (I + (1 - d1) * solve(s + I))
Standard_error <- sqrt(diag(abs(dbd)))
dbt <- t(bal)
dbd <- ev * (I + (1 - d1) * solve(s + I)) %*% fd %*%
xin %*% fd %*% (I + (1 - d1) * solve(s + I))
sdbd_inv <- (sqrt(diag(abs(dbd))))^-1
sdbd_inv_mat <- diag(sdbd_inv)
if (NCOL(dbt) == 1L)
tbd <- dbt * sdbd_inv
else tbd <- dbt %*% sdbd_inv_mat
hggh <- t(tbd)
bibet <- -(1 - d1)^2 * solve(s + I) %*% solve(s + I) %*%
bb
bibets <- bibet %*% t(bibet)
mse <- dbd + bibets
mse1 <- sum(diag(mse))
mse1 <- round(mse1, digits = 4L)
names(mse1) <- c("MSE")
tst <- t(2L * pt(-abs(tbd), df <- (NROW(x) - NCOL(x))))
colnames(tst) <- c("p_value")
colnames(hggh) <- c("t_statistic")
ans1 <- cbind(bal, Standard_error, hggh, tst)
ans <- round(ans1, digits = 4L)
anw <- list(`*****Almost Unbiased Liu Estimator*****` = ans,
`*****Mean square error value*****` = mse1)
return(anw)
}
npt <- aules(formula, d1, data, na.action)
plotaul <- function(formula, d, data = NULL, na.action, ...) {
i <- 0
arr <- 0
for (i in 1:NROW(d)) {
if (d[i] < 0L)
d[i] <- 0L
else d[i] <- d[i]
if (d[i] > 1L)
d[i] <- 1L
else d[i] <- d[i]
aulm <- function(formula, d, data, na.action, ...) {
cal <- match.call(expand.dots = FALSE)
mat <- match(c("formula", "data", "na.action"),
names(cal))
cal <- cal[c(1L, mat)]
cal[[1L]] <- as.name("model.frame")
cal <- eval(cal)
y <- model.response(cal)
md <- attr(cal, "terms")
x <- model.matrix(md, cal, contrasts)
s <- t(x) %*% x
xin <- solve(s)
bb <- xin %*% t(x) %*% y
I <- diag(NCOL(x))
fd <- solve(s + I) %*% (s + d * I)
bal <- (I - (1 - d)^2 * solve(s + I) %*% solve(s +
I)) %*% bb
ev <- (t(y) %*% y - t(bb) %*% t(x) %*% y)/(NROW(x) -
NCOL(x))
ev <- diag(ev)
dbd <- ev * (I + (1 - d) * solve(s + I)) %*%
fd %*% xin %*% fd %*% (I + (1 - d) * solve(s +
I))
bibet <- -(1 - d)^2 * solve(s + I) %*% solve(s +
I) %*% bb
bibets <- bibet %*% t(bibet)
mse <- dbd + bibets
mse1 <- sum(diag(mse))
return(mse1)
}
arr[i] <- aulm(formula, d[i], data, na.action)
}
MSE <- arr
parameter <- d
pvl <- cbind(parameter, MSE)
colnames(pvl) <- c("Parameter", "MSE")
sval <- pvl
return(sval)
}
paul <- plotaul(formula, d, data, na.action)
if (nrow(d) > 1L)
val <- paul
else val <- npt
val
}
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