Hierarchical clustering analysis method is one of the essential mathematic methods for classifying and locating problems, which usually exist in produce practice.
在生产实践中经常遇到分类与布点的问题，系统聚类分析方法是分类布点决策的主要数学方法之一。
The hierarchical analysis is a significant method in exploration into the international relations.
层次分析是国际关系研究中的一种重要方法。
The text analyses the hydrologic data of similar, and confirm the method of the hydrologic similar year, to use the cluster analysis for the condensation algorithm of the hierarchical cluster.
本文通过对水文数据相似性进行分析，提出了采用聚类分层分析，以相似距离为尺度的水文相似年查找方法。
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