灰色聚类法分析华东地区2005年的环境质量分类等级

随着中国经济的快速发展，环境问题日益严重，也越来越为人类所关注，分析环境质量等级的方法也有很多。聚类法就是其中的一种，聚类分析是在不知道类别数目的情况下对样本数据进行分类。它是根据”物以类聚的道理”，对样品和指标进行分类的一种多元统计分析方法。但是聚类分析不能解决同一类中优化排序问题，因此文章采用灰色聚类法来分析华东地区的环境质量分类等级。

Gray Cluster Analysis the Environmental Uality Classification Grading of East China in 2005

With China＇s rapid economic development, the environment is getting worse, more and more concern for the human, environmental quality and grade of a lot of ways. Clustering is one of a kind, cluster analysis is not aware of the number of categories of cases on sample data classification. It is based on ＂thing are together by their attribute＂, and indicators to classify samples of a multivariate statistical analysis methods. But not the same type of cluster analysis in the optimization of scheduling problem, gray clustering method used in this paper to analyze the environmental quality in the area classification hierarchy.