Assign k-Prototypes Clusters
Predicts k-prototypes cluster memberships and distances for new data.
## S3 method for class 'kproto' predict(object, newdata, ...)
object |
Object resulting from a call of |
newdata |
New data frame (of same structure) where cluster memberships are to be predicted. |
... |
Currently not used. |
kmeans
like object of class kproto
:
cluster |
Vector of cluster memberships. |
dists |
Matrix with distances of observations to all cluster prototypes. |
# generate toy data with factors and numerics n <- 100 prb <- 0.9 muk <- 1.5 clusid <- rep(1:4, each = n) x1 <- sample(c("A","B"), 2*n, replace = TRUE, prob = c(prb, 1-prb)) x1 <- c(x1, sample(c("A","B"), 2*n, replace = TRUE, prob = c(1-prb, prb))) x1 <- as.factor(x1) x2 <- sample(c("A","B"), 2*n, replace = TRUE, prob = c(prb, 1-prb)) x2 <- c(x2, sample(c("A","B"), 2*n, replace = TRUE, prob = c(1-prb, prb))) x2 <- as.factor(x2) x3 <- c(rnorm(n, mean = -muk), rnorm(n, mean = muk), rnorm(n, mean = -muk), rnorm(n, mean = muk)) x4 <- c(rnorm(n, mean = -muk), rnorm(n, mean = muk), rnorm(n, mean = -muk), rnorm(n, mean = muk)) x <- data.frame(x1,x2,x3,x4) # apply k-prototyps kpres <- kproto(x, 4) predicted.clusters <- predict(kpres, x)
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