Table 3 Summary of eigenvalues and contribution rates obtained by principal component analysis
Start feature value | extract square sum load | cycle square sum load | |||||||
|---|---|---|---|---|---|---|---|---|---|
total | Variance % | Accumulate % | total | Variance % | Accumulate % | total | Variance % | Accumulate % | |
1 | 5.78 | 30.40 | 30.40 | 5.78 | 30.40 | 30.40 | 2.60 | 13.69 | 13.69 |
2 | 2.05 | 10.77 | 41.17 | 2.05 | 10.77 | 41.17 | 2.56 | 13.46 | 27.15 |
3 | 1.29 | 6.77 | 47.94 | 1.29 | 6.77 | 47.94 | 2.14 | 11.28 | 38.43 |
4 | 1.12 | 5.88 | 53.82 | 1.12 | 5.88 | 53.82 | 2.08 | 10.96 | 49.40 |
5 | 0.97 | 5.09 | 58.91 | 0.97 | 5.09 | 58.91 | 1.81 | 9.51 | 58.91 |
6 | 0.94 | 4.97 | 63.89 | ||||||
7 | 0.90 | 4.73 | 68.62 | ||||||
8 | 0.70 | 3.69 | 72.31 | ||||||
9 | 0.68 | 3.59 | 75.90 | ||||||
10 | 0.58 | 3.06 | 78.96 | ||||||
11 | 0.56 | 2.95 | 81.91 | ||||||
12 | 0.56 | 2.92 | 84.83 | ||||||
13 | 0.53 | 2.80 | 87.63 | ||||||
14 | 0.47 | 2.50 | 90.13 | ||||||
15 | 0.46 | 2.44 | 92.57 | ||||||
16 | 0.42 | 2.20 | 94.77 | ||||||
17 | 0.35 | 1.85 | 96.62 | ||||||
18 | 0.35 | 1.82 | 98.44 | ||||||
19 | 0.30 | 1.56 | 100.00 | ||||||