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HViktorTsoi/shuffle.py

Created September 3, 2018 11:55
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numpy shuffle一个或多个有对应关系的矩阵
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shuffle.py
X Y是二维的numpy矩阵
permutation = list(np.random.permutation(m))
shuffled_X = X[:, permutation]
shuffled_Y = Y[:, permutation].reshape((1,m)) # reshape是为了保证矩阵不会自动转化为向量
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