centree {drclust}

Ward-dendrogeam of centroids of partitioning models

Description

Plots the Ward-dendrogram of the centroids of a partitioning model. The plot is useful as a diagnosis tool for the choice o the number of clusters.

Usage

centree(drclust_out)

Arguments

drclust_out

Output of either doublekm, redkm, factkm or dpcakm.

Value

centroids-dkm

Centroids x centroids distance matrix.

Author(s)

Ionel Prunila, Maurizio Vichi

References

Ward J. H. (1963) "Hierarchical Grouping to Optimize an Objective Function" <doi:10.1080/01621459.1963.10500845>

Examples

# Iris data 
# Loading the numeric variables of iris data
iris <- as.matrix(iris[,-5]) 

dc_out <- dpcakm(iris, 20, 3)
d <- centree(dc_out)