specc-class function

Class "specc"

The Spectral Clustering Class 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

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)