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統計検定ワークブック 24章 クラスター分析

Posted at

クラスター分析

データ間の距離

階層的手法

非階層的手法

kmeans法

混合ガウス分布

https://qiita.com/kenmatsu4/items/59ea3e5dfa3d4c161efb
https://www.hello-statisticians.com/explain-terms-cat/gmm1.html

例題24.1

(1)
左が最近隣法、右が最遠隣法
最近隣法でクラスタリングを行う場合、距離が1.4,1.6,2.4,2.5,2.7のタイミングで結合している

1 2 3 4 5 6
0.0 2.4 3.3 3.3 2.5 5.4
2.4 0.0 5.5 5.6 4.4 7.5
3.3 5.5 0.0 1.4 1.6 4.0
3.3 5.6 1.4 0.0 2.3 2.7
2.5 4.4 1.6 2.3 0.0 4.6
5.4 7.5 4.0 2.7 4.6 0.0
1 2 3 4 5 6
0.0 2.4 3.3 3.3 2.5 5.4
2.4 0.0 5.5 5.6 4.4 7.5
3.3 5.5 0.0 1.4 1.6 4.0
3.3 5.6 1.4 0.0 2.3 2.7
2.5 4.4 1.6 2.3 0.0 4.6
5.4 7.5 4.0 2.7 4.6 0.0

1 2 3,4 5 6
0.0 2.4 3.3 2.5 5.4
2.4 0.0 5.5 4.4 7.5
3.3 5.5 0.0 1.6 2.7
2.5 4.4 1.6 0.0 4.6
5.4 7.5 2.7 4.6 0.0
1 2 3,4 5 6
0.0 2.4 3.3 2.5 5.4
2.4 0.0 5.6 4.4 7.5
3.3 5.6 0.0 2.3 2.7
2.5 4.4 2.3 0.0 4.6
5.4 7.5 4.0 4.6 0.0

1 2 3,4,5 6
0.0 2.4 2.5 5.4
2.4 0.0 4.4 7.5
2.5 4.4 0.0 2.7
5.4 7.5 2.7 0.0
1 2 3,4,5 6
0.0 2.4 3.3 5.4
2.4 0.0 5.6 7.5
3.3 5.6 0.0 4.6
5.4 7.5 4.6 0.0

1,2 3,4,5 6
0.0 2.5 5.4
2.5 0.0 2.7
5.4 2.7 0.0
1,2 3,4,5 6
0.0 5.6 7.5
5.6 0.0 4.6
7.5 4.6 0.0

1,2,3,4,5 6
0.0 2.7
2.7 0.0
1,2,6 3,4,5
0.0 7.5
7.5 0.0

(2)回答のとおり

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