多元统计分析
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系统聚类法的几种不同的方法:
一.组间连接法Dendrogram using Average Linkage (Between Groups)
Rescaled Distance Cluster Combine
C A S E 0 5 10 15 20 25
Label Num +---------+---------+---------+---------+---------+ 6 -+
9 -+
2 -+
12 -+
4 -+
10 -+
1 -+
7 -+
14 -+
3 -+
15 -+---------+
11 -+ +-------------------------------------+ 5 -+ | | 8 -----------+ | 13 -------------------------------------------------+ 二.组内连接法
Dendrogram using Average Linkage (Within Group)
Rescaled Distance Cluster Combine
C A S E 0 5 10 15 20 25
Label Num +---------+---------+---------+---------+---------+ 6 -+
9 -+
2 -+
12 -+
4 -+
10 -+
1 -+
3 -+
7 -+
14 -+-+
15 -+ +-------+
11 -+ | +-------------------------------------+
5 ---+ | |
8 -----------+ |
13 -------------------------------------------------+ 三.Dendrogram using Single Linkage
Rescaled Distance Cluster Combine
C A S E 0 5 10 15 20 25
Label Num +---------+---------+---------+---------+---------+ 6 -+
9 -+
2 -+
12 -+
4 -+
10 -+
14 -+
3 -+-+
15 -+ +---------+
11 -+ | +-----------------------------------+
5 ---+ | |
8 -------------+ |
13 -------------------------------------------------+
四.Dendrogram using Complete Linkage
Rescaled Distance Cluster Combine
C A S E 0 5 10 15 20 25
Label Num +---------+---------+---------+---------+---------+ 6 -+
9 -+
2 -+
12 -+
4 -+
10 -+
1 -+
7 -+
14 -+
3 -+-+
15 -+ +---------+
11 -+ | +-----------------------------------+
5 ---+ | |
8 -------------+ |
13 -------------------------------------------------+ 五.Dendrogram using Centroid Method
Rescaled Distance Cluster Combine
C A S E 0 5 10 15 20 25
Label Num +---------+---------+---------+---------+---------+ 6 -+
9 -+
2 -+
12 -+
4 -+
10 -+
1 -+
7 -+
14 -+
3 -+
15 -+---------+
11 -+ +-------------------------------------+
5 -+ | |
8 -----------+ |
13 -------------------------------------------------+ 六.Dendrogram using Median Method
Rescaled Distance Cluster Combine
C A S E 0 5 10 15 20 25
Label Num +---------+---------+---------+---------+---------+
2 -+
12 -+
4 -+
10 -+
1 -+
7 -+
14 -+
3 -+-+
15 -+ +---------+
11 -+ | +-----------------------------------+
5 ---+ | |
8 -------------+ |
13 -------------------------------------------------+
七. Dendrogram using Ward Method
Rescaled Distance Cluster Combine
C A S E 0 5 10 15 20 25
Label Num +---------+---------+---------+---------+---------+
6 -+
9 -+
2 -+
12 -+
4 -+
10 -+
1 -+
7 -+
14 -+
3 -+
15 -+-----------------------------------------------+
11 -+ |
5 -+ |
8 ---------+---------------------------------------+
13 ---------+
从树形图可以清楚的看到,若将15个样品分为两类,则样品1—12和14,15为一类,样品13为一类。若将样品分为三类,则样品1—7和样品9—12,14,15为一类,8为一类,13为一类,依此类推。K均值法