摘要
利用二次移动平均模型,引入均方拟合误差最小的原理确定出时段数N,对国民经济总收入、人口数量等项目进行了预测。
The total income of national economy and the amount of population are predicted with second-degree moving model and with the principle of least mean square fit error determining designated value N.
关键词
二次移动预测
经济预测模型
拟合
second-degreee moving model, least mean square fit error
