Frequent and continuous

Root mean square standard deviation

Maximum distance from seed to observation

Recent Clustering

The distance between cluster centroids

2

0.85

1.59

3

3.58

17

0.33

1.44

5

2.12

2

0.85

1.58

1

3.58

2

0.35

0.66

5

2.58

8

0.53

2.02

2

2.12