plotMDS {densityClust}R Documentation

Plot observations using multidimensional scaling and colour by cluster

Description

This function produces an MDS scatterplot based on the distance matrix of the densityCluster object, and, if clusters are defined, colours each observation according to cluster affiliation. Observations belonging to a cluster core is plotted with filled circles and observations belonging to the halo with hollow circles.

Usage

plotMDS(x, ...)

Arguments

x

A densityCluster object as produced by densityClust

...

Additional parameters. Currently ignored

See Also

densityClust

Examples

irisDist <- dist(iris[,1:4])
irisClust <- densityClust(irisDist, gaussian=TRUE)
plot(irisClust) # Inspect clustering attributes to define thresholds

irisClust <- findClusters(irisClust, rho=2, delta=2)
plotMDS(irisClust)
split(iris[,5], irisClust$clusters)
[Package densityClust version 0.2.1 Index]