Table 6 The load matrix, eigenvalue, and contribution rate of principal components
Index | Principal component l | Principal component 2 |
|---|---|---|
Al2O3 | 0.295 | 0.661 |
SiO2 | -0.503 | 0.0150 |
K2O | 0.390 | 0.228 |
CaO | 0.460 | -0.304 |
TiO2 | 0.408 | 0.207 |
Fe2O3 | 0.361 | -0.612 |
Eigen value | 3.71 | 1.12 |
Variance contribution rate | 61.89% | 18.71% |
Cumulative contribution rate | 61.89% | 80.60% |
