一种多总体的判别分析

判别分析是对样品或者个体进行判别分类的一种统计方法.对多总体数据进行判别分析时,总体之间的差别信息被看成同等重要,然而,这种判别效果往往不是很好.为此,提出一种结合分组的判别方法,根据各个总体的差别不同将总体分成若干组,然后对每组的数据进行判别分析,并将其应用于实例,证明在一定条件下,这种结合分组的判别方法有效.

Discriminant Analysis with Multiclasses

Discriminant analysis is a commonly used technique to classify a set of observations into predefined classes.The difference between classes is the same importance for us,so the effect of the discriminate analysis with multiclasses is not always good.A discrimination method is proposed by grouping under classes,which puts classes into different groups according to the different information between classes and makes discriminant analysis for groups.According to the example,the method is proved to be effective in certain condition.