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Vector loadings and percentage variations that were explained by the three principal components (PC).
| Parameters | PC1 | PC2 | PC3 |
|---|---|---|---|
| GPS | 0.72112 | −0.55793 | 0.41075 |
| TGW | 0.93699 | −0.092344 | −0.33693 |
| GY | 0.97985 | −0.19252 | −0.053142 |
| Fe | 0.44635 | 0.89224 | 0.06846 |
| Cu | 0.46273 | 0.87517 | 0.14126 |
| Zn | −0.99163 | 0.12679 | 0.024547 |
| Loadings | |||
| Eigenvalue | 3.75474 | 1.93496 | 0.310304 |
| Percentage variance | 0.62579 | 0.32249 | 0.051717 |
