Research Article
Global Clustering Quality Coefficient Assessing the Efficiency of PCA Class Assignment
Table 6
Cumulated explained variance.
| | Principal component | PC1 (%) | PC2 (%) | PC3 (%) | PC4 (%) | PC5 (%) | PC6 (%) | PC7 (%) | PC8 (%) | PC9 (%) | PC10 (%) |
| Unprocessed
spectra | 37.9 | 53.1 | 63.3 | 71.8 | 78.4 | 82.9 | 87.0 | 89.8 | 92.1 | 93.8 | | preprocessed spectra | 44.6 | 65.9 | 73.6 | 79.3 | 84.6 | 89.0 | 91.6 | 93.4 | 94.8 | 95.9 | | preprocessed spectra | 48.5 | 80.0 | 85.4 | 88.7 | 92.0 | 93.8 | 95.7 | — | — | — | | preprocessed spectra | 70.5 | 92.8 | 95.8 | — | — | — | — | — | — | — |
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