Table 2.
K-means analysis of typical indicators.
| Categories and items | Clustering | Error | F statistics | P-value | |||
|---|---|---|---|---|---|---|---|
| MSB | DF | MSE | DF | ||||
| 3 | Hand length | 3.101 | 2 | 4.932 | 103 | 0.629 | 0.535 |
| Proximal middle finger width | 286.918 | 2 | 18.351 | 103 | 15.635 | 0 | |
| Rhizosphere of index finger | 495.018 | 2 | 6.590 | 103 | 75.117 | 0 | |
| Ring finger length | 2854.452 | 2 | 14.108 | 103 | 202.329 | 0 | |
| 4 | Hand length | 5.474 | 3 | 4.881 | 102 | 1.122 | 0.344 |
| Proximal middle finger width | 447.240 | 3 | 11.003 | 102 | 40.649 | 0 | |
| Rhizosphere of index finger | 306.305 | 3 | 7.352 | 102 | 41.664 | 0 | |
| Ring finger length | 1934.588 | 3 | 13.316 | 102 | 145.280 | 0 | |
| 5 | Hand length | 14.415 | 4 | 4.521 | 101 | 3.189 | 0.016 |
| Proximal middle finger width | 343.733 | 4 | 10.783 | 101 | 31.878 | 0 | |
| Rhizosphere of index finger | 252.739 | 4 | 6.513 | 101 | 38.803 | 0 | |
| Ring finger length | 1547.797 | 4 | 9.612 | 101 | 161.023 | 0 | |
MSB: mean squared between; MSE: mean squared error.