K-Means using Spaeth's exchange algorithm, initialized using first PC projections. Input file name: iris0.dat No. of rows, n = 150 No. of columns, m = 4 No. of clusters, k = 3 Variable means: 5.8433 3.0573 3.7580 1.1993 Variable standard deviations: 0.8253 0.4344 1.7594 0.7597 Cluster number, cardinality = 0 51.0 Cluster number, cardinality = 1 50.0 Cluster number, cardinality = 2 49.0 Initial cluster means: 5.0039 3.4078 1.4980 0.2608 5.8760 2.7920 4.2980 1.3660 6.6837 2.9633 5.5592 2.0061 Compactness = 88.32479791916776 EPOCH NUMBER IS = 1 New compactness = 87.93614893957593 New compactness = 85.1450000000001 New compactness = 83.46943137254912 New compactness = 83.03672115384626 New compactness = 83.01270468187285 New compactness = 82.8060641025642 New compactness = 82.09710999598566 New compactness = 81.04853623188419 New compactness = 80.88974747474761 New compactness = 80.28246103896117 New compactness = 79.67857241942079 New compactness = 79.56893103448292 EPOCH NUMBER IS = 2 New compactness = 79.40682472095925 New compactness = 79.02616666666685 New compactness = 78.85566582597751 EPOCH NUMBER IS = 3 New compactness = 78.85144142614622 EPOCH NUMBER IS = 4 Cluster centers: 5.0060 3.4280 1.4620 0.2460 5.9016 2.7484 4.3935 1.4339 6.8500 3.0737 5.7421 2.0711 Final cluster cardinalities: 50.0000 62.0000 38.0000 Assignments: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 2 2 2 2 1 2 2 2 2 2 2 1 1 2 2 2 2 1 2 1 2 1 2 2 1 1 2 2 2 2 2 1 2 2 2 2 1 2 2 2 1 2 2 2 1 2 2 1