Table 3.

Top-ranked features used by RF classifiers, using MDI scores.

Feature Name	MDI
Right Shoulder Y (entropy)	0.89
Left Foot Y (entropy)	0.80
Left Foot Z (variance)	0.80
Right Foot Y (entropy)	0.72
Left Foot Y (variance)	0.72
Right Foot Z (variance)	0.71
Left Shoulder Y (entropy)	0.68
Center of Gravity Postural Sway Y (entropy)	0.66
Right Foot Z (entropy)	0.63
Center of Gravity Postural Sway X (variance)	0.62
Left Shoulder Y (variance)	0.62
Left Foot X (variance)	0.61
Left Elbow Y (entropy)	0.60
Center of Gravity Postural Sway Y (variance)	0.59
Left Ankle Y (entropy)	0.57
Center of Gravity Postural Sway X (entropy)	0.57
Right Foot Y (variance)	0.56
Head Y (variance)	0.55
Left Hand Y (variance)	0.55
Left Foot Z (entropy)	0.55