Table 4.

Normality tests of kurtosis and skewness.

No	Feature (median)	Kurtosis value	Skewness value
1	s2s_wt	-1.0355	0.3945
2	s2o_wt	-0.3979	0.5488
3	s2n_wt	12.9306	2.6589
4	s2d_wt	1.4588	0.8479
5	o2o_wt	35.5860	5.4855
6	o2s_wt	32.5283	4.8299
7	o2n_wt	3.3604	1.5140
8	o2d_wt	31.3579	4.3775
9	n2n_wt	31.0130	5.5323
10	n2s_wt	0.05718	-0.0429
11	n2o_wt	32.7718	5.5978
12	n2d_wt	-1.4380	0.3839
13	d2d_wt	-0.9702	0.4085
14	d2o_wt	-0.4939	0.7442
15	d2s_wt	-0.8768	0.5192
16	d2n_wt	-1.5927	0.2196
17	o2s_hr	2.2197	-0.9983
18	o2n_hr	0.4237	-0.3175
19	o2d_hr	0.1843	-0.5749
20	s2n_hr	0.4694	0.8305