没有分类,就没有鉴别,也就无法认识客观事物.因此,分类是各个领域中经常遇到的基本问题之一.以定量分类为特征的聚类分析法,和一般的定性分析方法相比,失误的可能性小得多.因此,在分类问题上,该方法已经起了很大作用.但是,和其它任何方法一样,聚类分析法也有局限性.1.聚类分析法是建立在普通集合论基础之上的.任一集合A的特征函数C_Λ(X)只能用二值变量来描述.即: No classification, there is no identification, it can not understand the objective things.Therefore, classification is one of the basic problems often encountered in various fields.Clustering analysis of quantitative classification as compared with the general qualitative analysis, However, as with any other method, clustering analysis has its own limitations.1 Cluster analysis is based on the common On the basis of set theory, the characteristic function C_Λ (X) of any set A can only be described by binary variables: