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SungYK/gist:4a23c94c9eb6b275d3d2bd90a0b2a5dd

Created July 31, 2020 03:43
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gistfile1.txt
>>> arr = np.array([0,1,2,3,4,5,6,7,8,9])
>>> arr
array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9])
>>> mask = np.array([1,3,5,7])
>>> arr[mask]
array([1, 3, 5, 7])
>>> do some operation
array([0, 1, 0, 3, 0, 5, 0, 7, 0, 0])
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