| Hu Chunyan,Hu Liangping,Cluster analysis of disordered samples： based on the methods of Lance-Williams distance and the longest distance[J].SICHUAN MENTAL HEALTH,2024,37(S1):54-59 |
| Cluster analysis of disordered samples： based on the methods of Lance-Williams distance and the longest distance |
DOI：10.11886/scjsws20240110003 |
| English keywords:Disordered samples Lance-Williams distance Longest distance Cluster analysis Dendrogram |
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| English 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. |
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