Table 4 Descriptive analysis of training... | Emerald Publishing

Table 4

Descriptive analysis of training and testing set

Variables	Training set (N = 188,784 reviews)					Testing set (N = 20,977 reviews)
Variables	Min	Max	Mean	Std	VIF	Min	Max	Mean	Std	VIF
Output variable	Assertive return action (95,499) Non-assertive return action (93,285)					Assertive return action (10,611) Non-assertive return action (10,366)
Input variable
Performance	9.4e−05	0.9808	0.1844	0.2399	1.8521	0.0002	0.9791	0.1835	0.2384	1.8352
Primary features	0.0004	0.9948	0.2024	0.2181	1.1529	0.0008	0.9902	0.2041	0.2192	1.1579
Secondary features	0.0001	0.9683	0.0572	0.1202	1.4647	0.0001	0.9548	0.0576	0.1199	1.4480
Durability	0.0002	0.9583	0.0598	0.1006	1.7746	0.0003	0.9427	0.0598	0.1007	1.7599
Reliability	0.0003	0.9865	0.1156	0.1803	1.2896	0.0005	0.9754	0.1147	0.1792	1.2906
Product information mismatch	6.2e−05	0.9617	0.1698	0.2320	1.5789	0.0002	0.9388	0.1683	0.2314	1.5652
After-sales services	0.0001	0.9752	0.0693	0.1279	1.2840	0.0002	0.9541	0.0704	0.1297	1.2911
Logistics services quality	0.0001	0.9847	0.0756	0.1341	1.2137	0.0003	0.9721	0.0759	0.1348	1.2072
Warranty	0.0001	0.9647	0.0654	0.1273	1.2920	0.0002	0.9541	0.0654	0.1285	1.2892
Selling price	0.37	999.99	36.041	62.583	1.4153	0.37	999.99	35.872	61.601	1.4288
Sales rank	0	20.244	7.2459	3.1575	6.7319	0	17.480	7.2189	3.1758	6.6089

Variables	Training set (N = 188,784 reviews)					Testing set (N = 20,977 reviews)
Variables	Min	Max	Mean	Std	VIF	Min	Max	Mean	Std	VIF
Output variable	Assertive return action (95,499)Non-assertive return action (93,285)					Assertive return action (10,611)Non-assertive return action (10,366)
Input variable
Performance	9.4e−05	0.9808	0.1844	0.2399	1.8521	0.0002	0.9791	0.1835	0.2384	1.8352
Primary features	0.0004	0.9948	0.2024	0.2181	1.1529	0.0008	0.9902	0.2041	0.2192	1.1579
Secondary features	0.0001	0.9683	0.0572	0.1202	1.4647	0.0001	0.9548	0.0576	0.1199	1.4480
Durability	0.0002	0.9583	0.0598	0.1006	1.7746	0.0003	0.9427	0.0598	0.1007	1.7599
Reliability	0.0003	0.9865	0.1156	0.1803	1.2896	0.0005	0.9754	0.1147	0.1792	1.2906
Product information mismatch	6.2e−05	0.9617	0.1698	0.2320	1.5789	0.0002	0.9388	0.1683	0.2314	1.5652
After-sales services	0.0001	0.9752	0.0693	0.1279	1.2840	0.0002	0.9541	0.0704	0.1297	1.2911
Logistics services quality	0.0001	0.9847	0.0756	0.1341	1.2137	0.0003	0.9721	0.0759	0.1348	1.2072
Warranty	0.0001	0.9647	0.0654	0.1273	1.2920	0.0002	0.9541	0.0654	0.1285	1.2892
Selling price	0.37	999.99	36.041	62.583	1.4153	0.37	999.99	35.872	61.601	1.4288
Sales rank	0	20.244	7.2459	3.1575	6.7319	0	17.480	7.2189	3.1758	6.6089

Source(s): Authors’ own creation