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

Table 4

Cucumber ARIMA (1, 1, 1)(1, 1, 1)¹² model predictions contrast (unit: RMB/kg).

Date	Observation	Forecast	Date	Observation	Forecast
2012-01	8.17	6.08	2012-07	3.11	2.89
2012-02	6.35	6.32	2012-08	3.8	3.39
2012-03	6.21	5.74	2012-09	3.43	3.62
2012-04	5.04	4.71	2012-10	3.44	3.96
2012-05	3.56	3.68	2012-11	4.38	4.67
2012-06	2.71	2.84	2012-12	5.69	5.56