|  | After alignment | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
 | Original | Our method using three dimensions (RT, m/z, intensity) | Our method using two dimensions (RT, m/z) | Podwojski’s method (hierarchical clustering and linear regression) | Podwojski’s method (hierarchical clustering and loess) | |||||
Group | CV | Corr | CV | Corr | CV | Corr | CV | Corr | CV | Corr |
1 | 32 | 0.31 | 20 | 0.89 | 31 | 0.71 | 26 | 0.68 | 29 | 0.79 |
2 | 30 | 0.39 | 15 | 0.9 | 26 | 0.82 | 19 | 0.86 | 29 | 0.89 |
3 | 28 | 0.45 | 17 | 0.89 | 31 | 0.7 | 22 | 0.67 | 30 | 0.71 |
4 | 27 | 0.5 | 21 | 0.93 | 26 | 0.83 | 25 | 0.94 | 24 | 0.97 |
5 | 33 | 0.36 | 25 | 0.83 | 31 | 0.75 | 26 | 0.77 | 28 | 0.83 |