RETRACTED: Construction of Surface Water Pollution Prediction Model Based on Machine Learning

Table 4

Comparison between predicted value and real value of the model.

Time	Real value (mg/L)	Predicted value (mg/L)	Absolute error (mg/L)	Absolute error (%)
20200301	2.54	2.64	0.10	4.18
20170401	1.34	1.28	−0.06	4.92
20200501	1.31	1.37	0.06	4.81
20200601	0.71	0.73	0.02	3.68
20200701	0.57	0.54	−0.03	4.73
20200801	0.60	0.63	0.03	4.85
20200901	0.48	0.50	0.02	4.42
20201001	1.85	1.93	0.08	4.71
20201101	2.80	2.65	−0.15	5.19