The improvement of fitting and results is obvious through the comparative analysis of 1iilear regression and forecasting in 1998.
经过与线性回归的对比和1998年的预报，在历史拟合率和预报效果上的提高较为明显。
In this paper, a new model system is introduced, which synthetically applies time series model, nonlinear regression and combination forecasting model to forecast the change of the market price.
文章通过对一套市场价格预测模型体系的介绍，综合运用时间序列模型、多元非线性回归和组合模型来预测市场价格走势，探索从多角度综合预测市场价格的问题。
According to the economic indices of recent years, this paper constructs an econometric model of civil automobile by linear regression method and does some estimating and forecasting.
本文根据近年来国内各项经济指标，运用线性回归方法建立了民用汽车需求的计量经济模型，并对模型进行评价和预测。
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