specc-class {kernlab}R Documentation

Class "specc"

Description

The Spectral Clustering Class

Objects from the Class

Objects can be created by calls of the form new("specc", ...). or by calling the function specc.

Slots

centers:
Object of class "matrix" containing the cluser centers
size:
Object of class "vector" containing the number of points in each cluster
withinss:
Object of class "vector" containing the within-cluster sum of squares for each cluster
kernelf
Object of class kernel containing the used kernel function.

Methods

centers
signature(object = "specc"): returns the cluster centers
withinss
signature(object = "specc"): returns the within-cluster sum of squares for each cluster
size
signature(object = "specc"): returns the number of points in each cluster

Author(s)

Alexandros Karatzoglou
alexandros.karatzoglou@ci.tuwien.ac.at

See Also

specc, kpca-class

Examples

## Cluster the spirals data set.
data(spirals)

sc <- specc(spirals, centers=2)

centers(sc)
size(sc)

[Package kernlab version 0.9-8 Index]