Research Article
Age-Related Evolution Patterns in Online Handwriting
Table 7
Main characteristics of first-layer clusters for the aged people.
| | | PCT of people | Dynamics | Pressure | Curvature | Pen-up |
| | Cluster 1 | 75.6% | Low speed, accel, jerk | Average to high | Straight strokes | Average | | Cluster 2 | 12.5% | High speed, accel, jerk | Average to high | Straight strokes | Few | | Cluster 3 | 11.9% | Very low speed, accel, jerk | Average to low | Sharp breaks | Many |
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