本文介绍了R中的距离聚类的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧! 问题描述 我有一个整数向量,希望将其划分为多个簇,以使任何两个簇之间的距离均大于下界,而在任何簇中,两个元素之间的距离均小于上限。 p> 例如,假设我们有以下向量: 1、4、5、6、9、29, 32,36 并将上述下限和上限分别设置为19和9,以下两个向量应该是可能的结果: 1、4、5、6、9 29、32、36 感谢@flodel的评论,我意识到这种聚类可能是不可能的。因此,我想对问题进行一些修改: 如果仅强加 between 之间的群集距离下限,可能有哪些群集方法? 如果仅在群集距离上限内强加内,可能有哪些群集方法?解决方案 如果仅强加集群距离之间的下限,可能有哪些集群方法? 具有单链接的分层集群: x<-c(1、4、5、6、9、29、32、46 ,55)树<-hclust(dist(x),method = single) split(x,cutree(tree,h = 19)) # $`1` #[1] 1 4 5 6 9 ##$`2` #[1] 29 32 46 55 如果我仅施加群集内距离,可能的群集方法是什么 具有完全链接的分层聚类: x<-c(1、4、5、6、9、20、26、29、32)树<-hclust(dist(x),method = 完整) split(x,cutree(tree,h = 9)) # $`1` #[1] 1 4 5 6 9 ##$`2` #[1] 20 ## $`3` #[1] 26 29 32 I have a vector of integers which I wish to divide into clusters so that the distance between any two clusters is greater than a lower bound, and within any cluster, the distance between two elements is less than an upper bound.For example, suppose we have the following vector:1, 4, 5, 6, 9, 29, 32, 36And set the aforementioned lower bound and upper bound to 19 and 9 respectively, the two vectors below should be a possible result:1, 4, 5, 6, 929, 32, 36Thanks to @flodel 's comments, I realized this kind of clustering may be impossible. So I would like to modify the questions a bit:What are the possible clustering methods if I impose only the between cluster distance lower bound?What are the possible clustering methods if I impose only the within cluster distance upper bound? 解决方案 What are the possible clustering methods if I impose only the between cluster distance lower bound?Hierarchical clustering with single linkage:x <- c(1, 4, 5, 6, 9, 29, 32, 46, 55)tree <- hclust(dist(x), method = "single")split(x, cutree(tree, h = 19))# $`1`# [1] 1 4 5 6 9# # $`2`# [1] 29 32 46 55What are the possible clustering methods if I impose only the within cluster distance upper bound?Hierarchical clustering with complete linkage:x <- c(1, 4, 5, 6, 9, 20, 26, 29, 32)tree <- hclust(dist(x), method = "complete")split(x, cutree(tree, h = 9))# $`1`# [1] 1 4 5 6 9# # $`2`# [1] 20# # $`3`# [1] 26 29 32 这篇关于R中的距离聚类的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!
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