預計甚麼都可能會有的筆記本

7.2.1  相關軟體套件

    本節使用4個軟體套件：stats、cluster、fpc、mclust。

install.packages("statsDK")

install.packages("cluster")

install.packages("fpc")  

install.packages("mclust")

1.  核心函數

1. kmeans函數 kmeans(x,centers,iter.max=10,nstart=1,algorithm=c("Hartigan-Wong","Lioyd","For-gy","MacQueen"))
2. pam函數

pam(x,k,diss=inherits(x,"dist"),metric="euclidean",medoids=NULL,stand=FALSE,cluster.only=FALSE,do.swap=TRUE,keep.diss=!diss &&!cluster.only && n<100,keep.data=!diss && !cluster.only,pamonce=FALSE,trace.lev=0)

3. dbscan函數

dbscan(data,eps,MinPts=5,scale=FALSE,methods=c("hybrid","raw","dist"),seeds=TRUE,showplot=FALSE,countmode=NULL)

4. hclust、cutree及rect.hclust函數

hclust(d,method = "complete",members = NULL)

cutree(tree,k=NULL,h=NULL)

rect.hclust(tree,k=NULL,which = NULL,x=NULL,h=NULL,border = 2,cluster = NULL)

5. Mclust、mclustBIC、mclust2Dplot及densityMclust函數

mclust(data,G=NULL,modelNames=NULL,prior=NULL,control=emControl(),initalization=NULL,warn=FALSE,...)