摘要
目的:探讨哑变量在统计分析中的应用。方法:在协方差分析与方差分析中使用哑变量。结果:正确使用哑变量,扩大回归模型的应用范围。结论:在协方差分析中使用哑变量使对模型的理解变的简单,在方差分析中使用哑变量使得可以从回归的角度来理解模型。
Objective; To explore the application of dummy variable in statistical analysis, Method; Dummy variable is used for analysis of covariance and analysis of variance, Results; By using dummy variable, we can broaden the application of regression analysis, Conclusion： It is easy to understand the analysis of covariance and analysis of variance can also be considered in regression analysis setting by defining appropriate dummy variables.
出处
《数理医药学杂志》
2006年第1期51-53,共3页
Journal of Mathematical Medicine
关键词
哑变量
协方差分析
回归分析
dummy variable
analysis of covariance
regression analysis
