四川精神卫生2024，Vol.37Issue(z1)：54-59,6.DOI:10.11886/scjsws20240110003
无序样品聚类分析——基于兰氏和最长距离法
Cluster analysis of disordered samples:based on the methods of Lance-Williams distance and the longest distance
胡纯严 1胡良平2
作者信息
- 1. 军事科学院研究生院,北京 100850
- 2. 军事科学院研究生院,北京 100850||世界中医药学会联合会临床科研统计学专业委员会,北京 100029
- 折叠
摘要
Abstract
The purpose of the paper was to introduce the basic concepts,calculation methods,two examples and the calculation methods using SAS related to the cluster analysis of disordered samples.Basic concepts included the necessity of data transformation,centering transformation,standardization transformation,scaling transformation and logarithmic transformation.The calculation method involved Lance-Williams distance calculation formula and the longest distance calculation formula.The data in the two examples were"survey data on farmers'expenditure in 16 regions of China in 1982"and"measured values of 13 sports events on two quantitative indicators".With the help of SAS software,cluster analysis of disordered samples was performed on the data in the two examples,and the explanation of the SAS output results was given.关键词
无序样品/兰氏距离/最长距离/聚类分析/树形图Key words
Disordered samples/Lance-Williams distance/Longest distance/Cluster analysis/Dendrogram分类
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胡纯严,胡良平..无序样品聚类分析——基于兰氏和最长距离法[J].四川精神卫生,2024,37(z1):54-59,6.
