Research on SVR Water Quality Prediction Model Based on Improved Sparrow Search Algorithm

Table 4

Average SN ratio for V at each factor and level.

Factor	Level 1	Level 2	Level 3	Max-min	Rank
A	13.580	13.332	13.292	0.287	3
B	13.818	13.260	13.126	0.693	1
C	13.190	13.678	13.164	0.514	2

The bold values demonstrate the optimal response value and the highest S/N for each optimisation objective.