R: The Broken-Ring Data Set

Ring {clues} | R Documentation

## The Broken-Ring Data Set

### Description

The broken-ring data set studied in Wang et al. (2007).

### Usage

    data(Ring)

### Value

A list contains a 800 by 2 data matrix and a 800 by 1 cluster membership vector. There are 5 clusters containing 200, 157, 151, 151 and 141 data points, respectively, in a two-dimensional space.

### References

Wang, S., Qiu, W., and Zamar, R. H. (2007). CLUES: A non-parametric clustering method based on local shrinking. Computational Statistics & Data Analysis, Vol. 52, issue 1, pages 286-298.

### Examples

        data(Ring)

        # data matrix
        ring <- Ring$ring

        # 'true' cluster membership
        ring.mem <- Ring$ring.mem

        # 'true' number of clusters
        nClust <- length(unique(ring.mem))

        # scatter plots
        plotClusters(ring, ring.mem)

[Package clues version 0.6.2.2 Index]