| 两个回归模型的比较 |
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| 引用本文： | 李振东.两个回归模型的比较[J].唐山学院学报,2002(4). |
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| 作者姓名： | 李振东 |
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| 作者单位： | 唐山学院基础部 河北唐山063000 |
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| 摘 要： | 证明了在经典线性回归中 ,对同一组样本数据选取不同变量时 ,所得两条回归直线不重合 ,得出了这两条回归直线都通过点 ( x,y)及两直线夹角的正切计算公式 ,讨论了样本相关系数与回归直线的位置关系
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| 关 键 词： | 回归模型 回归直线 样本 变量 |
The Contrast between Two Regression Model |
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| LI Zhen,dong.The Contrast between Two Regression Model[J].Journal of Tangshan College,2002(4). |
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| Authors: | LI Zhen dong |
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| Abstract: | In this paper,it is proved that two linear regression lines are non unique when the same group of model data chooses different variables during the typical linear regression.A conclusion is drawn that the two linear regression lines both go past the dot (x,y) and the tan calculation formula of the angle between the two straight lines is discussed.The location relation between the sample related coefficient and the linear regression line is also discussed in this paper. |
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| Keywords: | regression model linear regression line sample variable |
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