回答編集履歴
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@@ -2,7 +2,7 @@
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```Python
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import matplotlib.pyplot as plt
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import numpy as np
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from scipy.cluster.hierarchy import linkage, fcluster
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from scipy.cluster.hierarchy import linkage, fcluster, dendrogram
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import random
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# テストデータ
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@@ -15,7 +15,12 @@
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# クラスタリング
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Z = linkage(X, method='ward', metric='euclidean')
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dendrogram(Z)
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plt.show()
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# クラスタ分け
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threshold = 0.7 * np.max(Z[:, 2])
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print(threshold) # 約2.9
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C = fcluster(Z, threshold, criterion='distance')
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print(C) # [2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1]
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@@ -23,4 +28,5 @@
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plt.scatter(x1, x2, c=C)
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plt.show()
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```
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