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Features extracted in time domain.
| Parameter | Definition |
|---|---|
| FC | The ratio between h and H |
| Sss | The ratio between S1 and S1 plus S2 |
| Sds | The ratio between S2 and S1 plus S2 |
| Tft | The ratio between Tf and T |
| Tst | The ratio between T1 and T |
| SL | The max slope between b and c |
