摘要
讨论了判别分析中变量选取的方法 .文中首先定义了反映总体间区别的总体可分性 ,然后在此基础上给出了总体可分性函数 ,并且讨论了该函数的三个性质 .根据此函数可以定义一个判别变量选取的目标函数 .
The method of selecting variables in discriminant analysis is discussed in this paper. The separability showing the difference of the collective is defined and then based on this definition, the separability function and three of its properties are given. By using this function, an objective function used to select variables can be defined. In the last section, a procedure is given and used to select the variables.
出处
《华南理工大学学报(自然科学版)》
EI
CAS
CSCD
北大核心
2001年第11期81-84,共4页
Journal of South China University of Technology(Natural Science Edition)
关键词
判别分析
总体可分性
变量选择
可分性函数
目标函数
判别变量集
discriminant analysis
separability of the collectivity
selection of variables
separability function