统计NumPy数组中最频繁出现的值

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arr = np.array([[1,2,100,4,5,6],[1,1,100,3,5,5],[2,2,4,4,6,6]])

方法一:

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count = np.bincount(arr[:,2])  # 找出第3列最频繁出现的值
value = np.argmax(count)

方法二:

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from collections import Counter

value = Counter(arr[:,2]).most_common()