【摘要】 根据某市自来水公司 1978— 2 0 0 3年逐年的供水量 ,给出了时间序列供水量预测模型建立的 3种方法 ,即直线趋势模型、二次曲线模型和指数平滑模型 .利用模型预测了 2 0 0 4年的供水量 .该模型为自来水年度供水量指标的预测提供了一种定量决策方法更多还原

【Abstract】 On the basis of the data of the successive annual water supplies through the years 1978~2003 by a municipal water supply company,three models of time series water supply prediction are constructed,i.e.the straight-line-trended model,the conic section model,and the exponential smoothing model.The annual water supply volume of the year 2004 was predicted with the models.These models provide a quantitative decision-making method for the prediction of annual water supply.更多还原