大概是想实现这样一个功能 (色块表示不同的数据):
实现方法:
import numpy as np
arr = np.array(np.arange(100)).reshape(5, -1)
print('arr:\n', arr)
print('arr_shape:\n', arr.shape)
>>
>arr:
[[ 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19]
[20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39]
[40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59]
[60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79]
[80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99]]
arr_shape:
(5, 20)
window_size = 3
print('划分之后: \n', arr[np.arange(window_size)[None, :] + np.arange(arr.shape[0]-window_size)[:, None]])
print('划分之后 shape: \n', arr[np.arange(window_size)[None, :] + np.arange(arr.shape[0]-window_size)[:, None]].shape)
>>
>划分之后:
[[[ 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19]
[20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39]
[40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59]]
[[20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39]
[40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59]
[60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79]]]
划分之后 shape:
(2, 3, 20)
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