Component | Original spectrum | Component | The first derivative spectrum of reciprocal logarithm | ||
Contribution rate/% | Cumulative contribution rate/% | Contribution rate/% | Cumulative contribution rate/% | ||
1 | 94.506 | 94.506 | 1 | 54.746 | 54.746 |
2 | 3.222 | 97.728 | 2 | 9.907 | 64.653 |
3 | 1.583 | 99.311 | 3 | 5.256 | 69.909 |
4 | 0.438 | 99.749 | 4 | 4.222 | 74.131 |
5 | 0.096 | 99.846 | 5 | 3.718 | 77.849 |
6 | 0.087 | 99.933 | 6 | 3.273 | 81.122 |
7 | 0.025 | 99.958 | 7 | 2.597 | 83.719 |
8 | 0.016 | 99.974 | 8 | 2.436 | 86.155 |
9 | 0.011 | 99.985 | 9 | 1.911 | 88.066 |
10 | 0.005 | 99.991 | 10 | 1.522 | 89.588 |
11 | 0.003 | 99.994 | 11 | 1.322 | 90.910 |
12 | 0.002 | 99.996 | 12 | 1.151 | 92.061 |