R中的距离聚类 [英] Clustering by distance in R
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
< hr>
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?
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, 36
And 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, 9
29, 32, 36
Thanks 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?
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 55
What 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
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