| 选择回归方程自变量的条件数法及其在RK手术中的应用 |
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| 引用本文： | 刘宇红,曾衍钧,杨振海. 选择回归方程自变量的条件数法及其在RK手术中的应用[J]. 生物数学学报, 2000, 15(1): 99-102 |
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| 作者姓名： | 刘宇红 曾衍钧 杨振海 |
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| 作者单位： | 1. 北京工业大学生物力学与医学信息研究所北京 100022
2. 北京工业大学应用数学系北京 100022 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 选择合适的自变量是确定线性回归模型的首要问题，本文以消除自变量之间的复共线性为目标，介绍了一种选择回归方程自变量的条件数法，并在ＲＫ手术的结果预测问题中采用了这一方法。
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| 关 键 词： | 复共线性 线性回归 条件数 放射状角膜切开术 |
| 文章编号： | 1001-9626(2000)01-0099-04 |
A Method in Choosing Independent Variables of Linear Regression Model |
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| LIU Yuhong,Zeng Yanjun,Yang Zhenhai. A Method in Choosing Independent Variables of Linear Regression Model[J]. Journal of Biomathematics, 2000, 15(1): 99-102 |
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| Authors: | LIU Yuhong Zeng Yanjun Yang Zhenhai |
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| Affiliation: | Liu Yuhong,Zeng Yanjun;(Biomechanics and Medical In formation Institute of Beijing Polytechnic Uniuersity, Beijing 100022);Yang Zhenhai;(Applied Mathematics Department of Beijing Polytechnic Uniuersity, Beijing 100022) |
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| Abstract: | The first thing to do in a linear regression model is to choose suitable independent variables. The main problem in this paper is to delete the Multi-Collinearity among the independent variables. Under this condition, a method in choosing independent variables of regression model is given, and then it is used to constitute the linear regression model to predict the result of RK. |
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| Keywords: | Multi-Collinearity Linear regression model Mean square error Condition number RK |
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