A Hybrid Neural Network and H-P Filter Model for Short-Term Vegetable Price Forecasting

Table 5

Green bean ARIMA (2, 1, 1)(1, 1, 1)¹² model predictions contrast (unit: RMB/kg).

Date	Observation	Forecast	Date	Observation	Forecast
2012-01	9.95	8.65	2012-07	4.78	5.10
2012-02	9.3	9.18	2012-08	5.6	5.63
2012-03	10.12	9.64	2012-09	5.58	6.06
2012-04	9.2	8.56	2012-10	5.19	6.26
2012-05	6.29	7.12	2012-11	6.96	7.06
2012-06	4.64	5.097	2012-12	8.13	8.05