It might be too simple question though,,
I want to make
from
a = np.array([1,2,3])
b = np.array([4,5,6])
to
[[1,2,3],
[4,5,6]]
+ ,concatenate, append neither doesn't work.
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whitebear
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1Does this answer your question? [How to append numpy arrays?](https://stackoverflow.com/questions/41523942/how-to-append-numpy-arrays) – Mykola Zotko Dec 23 '20 at 17:31
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What exactly did you try, and what was the error? – hpaulj Dec 23 '20 at 17:48
1 Answers
3
How about vstack:
np.vstack([a,b])
Or stack:
np.stack([a,b], axis=0)
Output:
array([[1, 2, 3],
[4, 5, 6]])
Quang Hoang
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or `np.array((a,b))` which is essentially `np.array([[1,2,3],[4,5,6]])`. – hpaulj Dec 23 '20 at 17:49