nor1mix (version 1.1-3)

clus2norMix: Transform Clustering / Grouping to Normal Mixture

Description

Simple transformation of a clustering or grouping to a normal mixture object (class "norMix", see, norMix.

Usage

clus2norMix(gr, x, name = deparse(sys.call()))

Arguments

gr

a grouping/clustering vector with values in ${1,..,K}$; possibly a factor.

x

numeric vector of (original) data (of the same length as gr).

name

name for norMix() object; constructed from the call by default.

Value

• A call to norMix() with (mu, sig2, w) set to the empirical values of the groups (as defined by split(x,gr).

See Also

norMix; further pam() (or clara()) from package cluster for sensible clusterings.

Examples

x9 <- rnorMix(500, MW.nm9)
require("cluster")
pxc <- pam(x9, k=3)
plot(pxc, which = 2)# silhouette

(nm.p9 <- clus2norMix(pxc$clustering, x9))
plot(nm.p9, p.norm=FALSE)
lines(MW.nm9, col="thistle")