Hierarchical Cluster 层次聚类
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Hierarchical Cluster 层次聚类
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R: Hierarchical Cluster 層次聚類
發表于2年前(2014-10-05 12:05)?? 閱讀(1884)?|?評論(0)?0人收藏此文章,?我要收藏 贊0目錄[-]
- 構造數據:
- 聚類:
- 分成兩個簇:
- 參考:
構造數據:
?| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 | > dataset = matrix(c(1,2, + 1.2,2, + 8,9, + 0.9,1.8, + 7,10, + 8.8,9.2), nrow=6, byrow=T) > dataset ?????[,1] [,2] [1,]? 1.0? 2.0 [2,]? 1.2? 2.0 [3,]? 8.0? 9.0 [4,]? 0.9? 1.8 [5,]? 7.0 10.0 [6,]? 8.8? 9.2 |
聚類:
?
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | > d = dist(dataset) > d ???????????1????????? 2????????? 3????????? 4????????? 5 2? 0.2000000??????????????????????????????????????????? 3? 9.8994949? 9.7590983???????????????????????????????? 4? 0.2236068? 0.3605551 10.1118742????????????????????? 5 10.0000000? 9.8812955? 1.4142136 10.2200783?????????? 6 10.6150836 10.4690019? 0.8246211 10.8245092? 1.9697716 > hclust(d, method = "complete") Call: hclust(d = d, method = "complete") Cluster method?? : complete Distance???????? : euclidean Number of objects: 6 > hc = hclust(d, method = "complete") > plot(hc) |
分成兩個簇:
?
| 1 2 3 | > democut<-cutree(hc,k=2) > democut [1] 1 1 2 1 2 2 |
參考:
http://www.r-tutor.com/gpu-computing/clustering/hierarchical-cluster-analysis
http://stat.ethz.ch/R-manual/R-devel/library/stats/html/hclust.html
http://ecology.msu.montana.edu/labdsv/R/labs/lab13/lab13.html
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