Nothing
initial_clustering <- function(data, k, i, init = 'random') {
numobs <- nrow(data)
if (init == 'kmeans') {
if (k[i] > 1) {
s <- kmeans(data, k[i], iter.max = 100, nstart = 30,
algorithm = "Hartigan-Wong")$cluster
} else {
s <- rep(1, numobs)
}
}
if (init == 'hclass') {
if (k[i] > 1) {
s <- cutree(hclust(dist(data), "ward.D2"), k[i])
} else {
s <- rep(1, numobs)
}
}
if (init == 'random') {
if (k[i] > 1) {
s <- sample(1 : k[i], numobs, replace = TRUE)
} else {
s <- rep(1, numobs)
}
}
if (init == 'mclust') {
if (k[i] > 1) {
s <- Mclust(data, k[i], verbose=FALSE)$classification
} else {
s <- rep(1, numobs)
}
}
s
}
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