Table 6 Results of PCA of 2D microwear analysis (fossils and extant mammals)
PC1 | PC2 | PC3 | PC4 | |
|---|---|---|---|---|
Standard deviation | 1.4244 | 1.2100 | 0.7023 | 0.11650 |
Proportion of variance | 0.5073 | 0.3660 | 0.1233 | 0.00339 |
Cumulative proportion | 0.5073 | 0.8733 | 0.9966 | 1 |
pit length | −0.69059 | 0.10336 | −0.14258 | 0.70149 |
pit width | −0.67917 | 0.19632 | −0.04167 | −0.70601 |
scratch length | 0.06555 | 0.72098 | 0.68298 | 0.09711 |
scratch width | −0.23985 | −0.65648 | 0.71517 | 0.00597 |