The meaning of keepdims in Python NumPy

Keepdims is mainly used to maintain the two-dimensional properties of matrices

Import= Np.array ([[1,2],[3,4]])#  is added by line and retains the second dimension of print(Np.sum (A, Axis=1, keepdims=True)#  Add by line, do not maintain the second dimension print(Np.sum (A, Axis=1))

Output

Array ([[3], [7]]) array ([3, 7])

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Reprinted from: http://blog.csdn.net/u012560212/article/details/78393836

The meaning of keepdims in Python NumPy