Data Sets used in the paper

Iris Data   txt (scaled) | html
parameter estimates obtained by EMMIX program (3 component fit) txt

Equal variance

Unequal variance

Means [1] 7.17614 6.33396 2.41245 1.73069 [2] 6.045410 7.864800 0.828189 0.322734 [3] 7.93972 6.83875 3.13772 2.65654 Common Variance           [,1]      [,2]      [,3]      [,4] [1,] 0.3849170 0.2489460 0.1160610 0.0623258 [2,] 0.2489460 0.5892670 0.0623258 0.0902379 [3,] 0.1160610 0.0623258 0.0598561 0.0311934 [4,] 0.0623258 0.0902379 0.0311934 0.0683532

Mean(1) [1] 5.006 3.428 1.462 0.246 Variance(1)         [,1]     [,2]     [,3]     [,4] [1,] 0.121764 0.097232 0.016028 0.010124 [2,] 0.097232 0.140816 0.011464 0.009112 [3,] 0.016028 0.011464 0.029556 0.005948 [4,] 0.010124 0.009112 0.005948 0.010884 Mean(2) [1] 6.5445 2.9487 5.4796 1.9846 Variance(2)           [,1]      [,2]      [,3]      [,4] [1,] 0.3870440 0.0922079 0.3028120 0.0616510 [2,] 0.0922079 0.1103380 0.0842876 0.0560115 [3,] 0.3028120 0.0842876 0.3277970 0.0745300 [4,] 0.0616510 0.0560115 0.0745300 0.0857977 Mean(3) [1] 5.9150 2.7778 4.2016 1.2970 Variance(3)           [,1]      [,2]      [,3]      [,4] [1,] 0.2753190 0.0969414 0.1846620 0.0543907 [2,] 0.0969414 0.0926460 0.0911432 0.0429973 [3,] 0.1846620 0.0911432 0.2006300 0.0609785 [4,] 0.0543907 0.0429973 0.0609785 0.0319970

Egyptian Skull Data  txt | html (Only first 3 time periods used in the example)
parameter estimates obtained by EMMIX program (3 component fit) txt

Unequal variance

Mean(1) [1] 131.550 135.530  97.459  50.028 Variance(1)           [,1]      [,2]      [,3]      [,4] [1,] 19.966900  8.780810  0.431953  7.363890 [2,]  0.097232 44.336900 18.266400 11.534800 [3,]  0.016028  0.011464 12.704300 -0.953379 [4,]  0.010124  0.009112  0.005948  9.866560 Mean(2) [1] 132.600 133.670  98.474  50.170 Variance(2)            [,1]       [,2]     [,3]    [,4] [1,] 25.0064000  3.0828400 -2.44129 2.54440 [2,]  0.0922079 10.1111000 -5.79258 3.17430 [3,]  0.3028120  0.0842876 28.58410 3.25703 [4,]  0.0616510  0.0560115  0.07453 8.51696 Mean(3) [1] 134.600 129.670  97.188  52.058 Variance(3)           [,1]       [,2]       [,3]      [,4] [1,] 3.4855300  0.7132200  8.4650400  -1.99985 [2,] 0.0969414 24.7186000 11.1599000  -6.40784 [3,] 0.1846620  0.0911432 28.5139000 -11.80520 [4,] 0.0543907  0.0429973  0.0609785   9.18387