Nothing
.wecdf_aux <- function(x, weights) {
ox <- order(x)
x <- x[ox]
ow <- weights[ox]
n <- length(x)
rval <- approxfun(x, cumsum(ow), method = "constant", yleft = 0, yright = 1,
f = 0, ties = "ordered")
class(rval) <- c("ecdf", "stepfun", class(rval))
assign("nobs", n, envir = environment(rval))
attr(rval, "call") <- sys.call()
rval
}
.wecdf <- function(x, weights) {
sw <- sum(weights)
if (sw == 0) {
ans <- rep(0, length(x))
}
else {
ans <- .wecdf_aux(x, weights/sw)(x)
}
return(ans)
}
.rwhich.max <- function(x) {
xmax <- max(x, na.rm = TRUE)
tmp <- which(x == xmax)
if (length(tmp) == 1) {
return(tmp)
}
else {
return(sample(tmp, size = 1, replace = FALSE))
}
}
.rwhich.min <- function(x) {
xmin <- min(x, na.rm = TRUE)
tmp <- which(x == xmin)
if (length(tmp) == 1) {
return(tmp)
}
else {
return(sample(tmp, size = 1, replace = FALSE))
}
}
.CountUniqueRows <- function(x) {
if (is.vector(x)) {
if (length(x) == 0) {
return(0)
}
else {
return(length(unique(x)))
}
}
else {
n <- nrow(x)
if (n == 0) {
return(0)
}
else {
if (ncol(x) == 1) {
return(length(unique(x[, 1])))
}
else {
sx <- x[do.call(order, as.list(as.data.frame(x))), ]
flags <- rep(0L, times = n)
for (i in 2:n) {
flags[i] <- prod(sx[i, ] == sx[i - 1, ])
}
return({
n - sum(flags)
})
}
}
}
}
.Cluster2Assign <- function(cluster) {
cl <- sort(unique(cluster[cluster != 0]))
G <- length(cl)
N <- length(cluster)
A <- matrix(0, nrow = N, ncol = 1 + G)
if (sum(cluster == 0) > 0) {
A[cluster == 0, 1] <- 1
}
for (j in 1:G) {
A[cluster == cl[j], j + 1] <- 1
}
return(A)
}
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