FLXmclust {flexmix}R Documentation

FlexMix Clustering Demo Driver

Description

This is a demo driver for flexmix implementing model-based clustering of Gaussian data.

Usage

FLXmclust(formula = . ~ ., diagonal = TRUE)
plotEll(object, data, ...)

Arguments

formula A formula which is interpreted relative to the formula specified in the call to flexmix using update.formula. Only the left-hand side (response) of the formula is used. Default is to use the original flexmix model formula.
diagonal If TRUE, then the covariance matrix of the components is restricted to diagonal matrices.
object An object of class flexmix using FLXmclust model.
data The data that were clustered.
... Passed to eqscplot.

Details

This is meant as a demo for FlexMix driver programming, use package mclust for real applications.

Value

FLXmclust returns an object of class FLXmodel.

Author(s)

Friedrich Leisch

See Also

flexmix

Examples

data(Nclus)

require("MASS")
eqscplot(Nclus)

## This model is wrong (one component has a non-diagonal cov matrix)
ex1 <- flexmix(Nclus~1, k=4, model=FLXmclust())
print(ex1)
plotEll(ex1, Nclus)

## True model, wrong number of components
ex2 <- flexmix(Nclus~1, k=6, model=FLXmclust(diag=FALSE))  
print(ex2)

plotEll(ex2, Nclus)

parameters(ex2, component=1)
[Package Contents]