specc-class {kernlab}

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

.Data:

Object of class "vector" containing the cluster assignments

centers:

Object of class "matrix" containing the cluster 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
[e-mail]

See Also

specc, kpca-class

Examples

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

sc <- specc(spirals, centers=2)

centers(sc)
size(sc)