fclust (version 1.0.1)

butterfly: Butterfly data

Description

Synthetic dataset with 2 clusters and some outliers.

Usage

data(butterfly)

format

A matrix with 17 rows and 2 columns.

Details

FKM with noise cluster should be used for finding outliers. In fact, differently from FKM, the membership degrees of the outliers are low for all the clusters.

Examples

data(butterfly)
plot(butterfly,type='n')
text(butterfly[,1],butterfly[,2],labels=rownames(butterfly),cex=0.7,lwd=2)
round(FKM(butterfly)$U,2)
round(FKM.noise(butterfly,delta=3)$U,2)