Created
December 12, 2018 07:01
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| arr = np.empty((0,3), int) | |
| arr = np.append(arr, np.array([[1, 2, 3],[4, 5, 6]]), axis=0) | |
| arr = np.append(arr, np.array([[7, 8, 9],[10, 11, 12]]), axis=0) | |
| arr.reshape(-1,2,3) | |
| >array([[[ 1, 2, 3], | |
| > [ 4, 5, 6]], | |
| > [[ 7, 8, 9], | |
| > [10, 11, 12]]]) |
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