我有一个数组,如下所示:
array([[0, 0, 0, 0, 0, 0, 0, 0],
[1, 1, 1, 1, 1, 1, 1, 1],
[2, 2, 2, 2, 2, 2, 2, 2],
[3, 3, 3, 3, 3, 3, 3, 3],
[4, 4, 4, 4, 4, 4, 4, 4],
[5, 5, 5, 5, 5, 5, 5, 5],
[6, 6, 6, 6, 6, 6, 6, 6],
[7, 7, 7, 7, 7, 7, 7, 7]])
我怎么能用整形把它分成4个夹头,这样看起来
array([[[0, 0, 0, 0],
[1, 1, 1, 1],
[2, 2, 2, 2],
[3, 3, 3, 3]],
[[0, 0, 0, 0],
[1, 1, 1, 1],
[2, 2, 2, 2],
[3, 3, 3, 3]],
[[4, 4, 4, 4],
[5, 5, 5, 5],
[6, 6, 6, 6],
[7, 7, 7, 7]],
[[4, 4, 4, 4],
[5, 5, 5, 5],
[6, 6, 6, 6],
[7, 7, 7, 7]]])
我尝试了不同的整数组合m,n,l的整形(m,n,l),但都没有成功。
最佳答案
编辑:对不起,我没有意识到这是一个三维的结果,而不是一个四维的结果。要得到三维的,你必须重新塑造一次。而额外的整形将复制数据。
你不能,你还需要改变姿势:
In [1]: a = np.arange(8)[:,None].repeat(8,axis=1)
In [2]: a
Out[2]:
array([[0, 0, 0, 0, 0, 0, 0, 0],
[1, 1, 1, 1, 1, 1, 1, 1],
[2, 2, 2, 2, 2, 2, 2, 2],
[3, 3, 3, 3, 3, 3, 3, 3],
[4, 4, 4, 4, 4, 4, 4, 4],
[5, 5, 5, 5, 5, 5, 5, 5],
[6, 6, 6, 6, 6, 6, 6, 6],
[7, 7, 7, 7, 7, 7, 7, 7]])
In [3]: b = a.reshape(2,4,2,4)
In [4]: b
Out[4]:
array([[[[0, 0, 0, 0],
[0, 0, 0, 0]],
...
[[7, 7, 7, 7],
[7, 7, 7, 7]]]])
In [5]: b.transpose(0,2,1,3)
Out[5]:
array([[[[0, 0, 0, 0],
[1, 1, 1, 1],
[2, 2, 2, 2],
[3, 3, 3, 3]],
[[0, 0, 0, 0],
[1, 1, 1, 1],
[2, 2, 2, 2],
[3, 3, 3, 3]]],
[[[4, 4, 4, 4],
[5, 5, 5, 5],
[6, 6, 6, 6],
[7, 7, 7, 7]],
[[4, 4, 4, 4],
[5, 5, 5, 5],
[6, 6, 6, 6],
[7, 7, 7, 7]]]])