移动平均法中移动步长的确定(英文)
Keywords: 移动平均法,移动步长,最优步长
Abstract:
为选用移动平均法中最优移动步长n，利用计算机的计算功能，设计了一种较为精确地确定移动平均法中最优移动步长n的方法．根据实际问题先设定预测精度，通过调节移动步长n使实际值与预测值的误差率达到最小，则此时移动步长n为最优．最优移动步长可以提高移动平均法的预测精度．用同样的方法可以寻找2次或更多次移动平均法中的最优移动步长n．移动平均法中的移动步长n为最优，其预测值通过检验时，该模型可用于实际问题的短期预测．
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