摘要
应用残差分析、回归诊断和回归方程选择等方法对新疆木垒县的旱作春小麦单位产量与各时期降水量及该地区的生产潜力进行分析,寻求不同时期降水量与产量的相关与贡献的程度,进而建立了一个产量的预报模型。
Many of the statis tical techniques and concepts,such as residual analysis,regression diagnostics,in the past analysis etc.,developed in recent quarter century,are used to exhibit if the data fit the assumption of the model we have made,and some times to reach certain significant conclusions in practice.In this paper,we use these techniques to analyses the relation ship between the yield of dryland spring wheat and the precipitation in the Mulci County of Xinjiang.With that the model to predieting yield of wheat is established,by using the method of selecting regression equation.
关键词
小麦
春小麦
回归分析
降水量
Linear regression analysis
residual analysis
regression diagnostics
regression variablc selection
Cp criteria
