Table 13. The range of variance of features for C2 for each day showing the minimum, median, and maximum values when the motion of the platform was at least 30 seconds in duration.

C2		Day
		1			2			3
Feature		min	mid	max	min	mid	max	min	mid	max
FFT Joystick digital ‘y’ axis (Hz)		0.3	3.0	8.8	1.1	2.9	5.7	0.5	4.8	14.6
Velocity vector (x, y) x10 2 smoothness ‘S’		1.5	4.2	5.9	3.4	3.7	5.1	1.3	3.5	5.1
Input bias ellipse	F/right a	7.5	14	50	0	22	50	0	13	39
	F/right b	5	88	127	15	62	127	7	88	127
	F/left b	5	16	56	11	15	29	7	15	47
	F/left b	18	95	127	8	102	127	7	98	127
	R/right a	0	29	46	4	22	41	4	30	49
	R/right b	13	88	124	10	50	127	8	76	127
	R/left a	1	25	36	3	23	29	1	26	44
	R/left b	8	95	116	3	108	125	7	91	127
Velocity vector bias (mm/s)	F/right	8	23	45	7	22	34	5	19	35
	F/left	8	25	78	8	21	46	5	23	89
	R/right	6	20	153	8	16	23	5	18	36
	R/left	9	22	41	7	16	21	6	19	88
Driving time	ratio	0.2	0.6	1.5	0.3	0.8	1.8	0.1	0.6	1.5
	total	35	91	1192	36	85	402	32	69	812