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Table 5
Results of the principal component analysis applied to eight different properties of the galaxies.
| Parameter Vi | a(i)1 | a(i)2 | a(i)3 | a(i)4 | a(i)5 | a(i)6 | a(i)7 | a(i)8 | |
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| V1 | D4000 | –0.368 | 0.117 | 0.423 | 0.062 | –0.653 | 0.329 | –0.365 | –0.026 |
| V2 | EW0 [O ii] | 0.359 | –0.056 | –0.429 | –0.245 | –0.733 | –0.177 | 0.233 | –0.025 |
| V3 | Δ(B − z) | –0.392 | 0.139 | 0.388 | 0.023 | –0.114 | –0.525 | 0.621 | 0.039 |
| V4 | G | –0.367 | 0.304 | –0.415 | 0.031 | 0.002 | –0.571 | –0.522 | –0.038 |
| V5 | M20 | 0.419 | –0.013 | 0.323 | 0.131 | –0.058 | –0.314 | –0.261 | 0.730 |
| V6 | C | 0.400 | 0.125 | –0.289 | –0.447 | 0.065 | 0.320 | 0.160 | 0.640 |
| V7 | A | 0.185 | 0.772 | –0.160 | 0.488 | –0.028 | 0.234 | 0.215 | 0.066 |
| V8 | S | 0.278 | 0.510 | 0.318 | –0.693 | 0.124 | –0.052 | –0.119 | –0.222 |
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| PC1 | PC2 | PC3 | PC4 | PC5 | PC6 | PC7 | PC8 | ||
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| Prop. variance | 0.586 | 0.142 | 0.109 | 0.063 | 0.043 | 0.024 | 0.022 | 0.011 | |
| Cum. variance | 0.586 | 0.728 | 0.838 | 0.901 | 0.944 | 0.968 | 0.990 | 1.000 | |
Notes. Absolute values of the coefficients a(i)x show the relative importance of the original variables within each principal component; a negative coefficient means an anti-correlation.
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