| Feature | Description |
|---|---|
| speed_moving_mean | mean of the instantaneous speed while moving (cm/sec) |
| time_spend_moving_percentage | ratio of moving and the total number of frames (au) |
| directional_change_mean | mean of the directional change (degree) |
| directional_change_pos_mean | mean directional change regarding positive angles only |
| directional_change_neg_mean | mean directional change for regarding negative angles |
| acceleration_mean | mean positive acceleration |
| total_distance | total distance traveled while moving |
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