Table 1.
Loadings on principal component axes
| PCA with three variables | loading on principal component axes | |||||
|---|---|---|---|---|---|---|
| abbreviation | PC 1 | PC 2 | PC 3 | PC 4 | PC 5 | |
| eye diameter | ED | -0.579 | 0.188 | 0.807 | - | - |
| axial length | AL | -0.576 | -0.759 | -0.303 | - | - |
| lens diameter | LD | -0.577 | 0.640 | -0.507 | - | - |
| percentage of variance explained | 98.96 | 0.74 | 0.29 | - | - | |
| PCA with five variables | loading on principal component axes | |||||
| abbreviation | PC 1 | PC 2 | PC 3 | PC 4 | PC 5 | |
| eye diameter | ED | -0.448 | 0.371 | 0.169 | -0.424 | 0.673 |
| axial length | AL | -0.446 | 0.586 | -0.368 | 0.536 | -0.190 |
| lens diameter | LD | -0.449 | 0 | 0.519 | -0.311 | -0.655 |
| max. pupil diameter | PDmax | -0.446 | -0.467 | -0.67 | -0.354 | 0 |
| min. pupil diameter | PDmin | -0.446 | -0.546 | 0.345 | 0.558 | 0.268 |
| percentage of variance explained | 98.03 | 1.1 | 0.4 | 0.31 | 0.15 | |