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\name{specc-class}
\docType{class}
\alias{specc-class}
\alias{centers}
\alias{size}
\alias{withinss}
\alias{centers,specc-method}
\alias{withinss,specc-method}
\alias{size,specc-method}
\alias{kernelf,specc-method}
\title{Class "specc"}
\description{ The Spectral Clustering Class}
\section{Objects from the Class}{
Objects can be created by calls of the form \code{new("specc", ...)}.
or by calling the function \code{specc}.
}
\section{Slots}{
\describe{
\item{\code{.Data}:}{Object of class \code{"vector"} containing the cluster assignments}
\item{\code{centers}:}{Object of class \code{"matrix"} containing
the cluster centers}
\item{\code{size}:}{Object of class \code{"vector"} containing the
number of points in each cluster}
\item{\code{withinss}:}{Object of class \code{"vector"} containing
the within-cluster sum of squares for each cluster}
\item{\code{kernelf}}{Object of class \code{kernel} containing the
used kernel function.}
}
}
\section{Methods}{
\describe{
\item{centers}{\code{signature(object = "specc")}: returns the
cluster centers}
\item{withinss}{\code{signature(object = "specc")}: returns the
within-cluster sum of squares for each cluster}
\item{size}{\code{signature(object = "specc")}: returns the number
of points in each cluster }
}
}
\author{Alexandros Karatzoglou\cr \email{alexandros.karatzoglou@ci.tuwien.ac.at}}
\seealso{
\code{\link{specc}},
\code{\link{kpca-class}}
}
\examples{
## Cluster the spirals data set.
data(spirals)
sc <- specc(spirals, centers=2)
centers(sc)
size(sc)
}
\keyword{classes}
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