> exam = np.arange(24).reshape(2, 3, 4)
> exam
array([[[ 0, 1,  2,  3],
        [ 4, 5,  6,  7],
        [ 8, 9, 10, 11]],

       [[12, 13, 14, 15],
        [16, 17, 18, 19],
        [20, 21, 22, 23]]])

> np.transpose(exam, (2, 1, 0)) ------ (2, 3, 4) 크기를 (4, 3, 2)로 변환
array([[[ 0, 12],
        [ 4, 16],
        [ 8, 20]],

       [[ 1, 13],
        [ 5, 17],
        [ 9, 21]],

       [[ 2, 14],
        [ 6, 18],
        [10, 22]],

       [[ 3, 15],
        [ 7, 19],
        [11, 23]]])