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本研究以河南省 1949～ 1998年 49年原煤产量的档案资料作为研究材料 ,采用计算机处理模拟出时间序列动态数学模型 45个 ,从中选出 7个最优回归模型 ,并以模型对未来年份原煤产量进行预测。同时绘制折线图、曲线图 7个
In this paper, the archival data of 49-year raw coal production in Henan Province from 1949 to 1998 were taken as the research materials. 45 dynamic mathematical models of time series were simulated by computer. Seven optimal regression models were selected from them, Production forecast. At the same time draw line chart, curve 7