Research on Population Development Trend in Huizhou of China Forecast Based on Optimal Weighted Combination Method and Fractional Grey Model

Table 2

Test results of the prediction model.

Year	OWC	FGM	ARIMA	Logistic
2019	497.42	477.43	499.21	494.99
2020	500.31	476.31	512.83	500.14
2021	502.90	474.90	520.77	505.27
MAE	4.1334	2.3882	6.7958	7.6208
RMSE	5.9247	3.1369	8.2047	8.8579