我如何知道哪些观察属于哪个群集？

Question

我在R中运行了层次聚类，我怎样才能将哪个观察属于哪个群集？谢谢！

 ### Hierarchical Clustering
 d <- dist(EMEA_2, method = "euclidean") # distance matrix
 fit <- hclust(d, method="complete") 

 ### Decide bet number of clusters 
 library(knitr)
 library(NbClust)

 nc<-NbClust(data = EMEA_2, distance = "euclidean", min.nc=2, max.nc=15, method = "complete", index = "db", alphaBeale = 0.1)

 groups <- cutree(fit, k=2) # cut tree into 2 clusters

 ### Get group means and number of frequencies within each cluster
 a2<-aggregate(EMEA_2, list(groups),mean)
 a4<-data.frame(Cluster = a2[,1], Freq = as.vector(table(groups)), a2[,-1])

Answer 1

如果您对""" comment here, can be multiple lines"""的优化结果感兴趣，可以在NbClust中找到它，其中每个数字是数据矩阵中各行的簇编号。

例如

nc$Best.partition

表示20x10数据矩阵。