'numpy.concatenate' produces error: "TypeError: only integer scalar arrays can be converted to a scalar index"

Question

I am self-answering the following question as when I made the following mistake, I couldn't find an answer.

a = np.array([1,2,3])
b = np.array([4,5,6])

np.concatenate(a, b)

Produces the following error:

TypeError: only integer scalar arrays can be converted to a scalar index

L Tyrone · Accepted Answer · 2024-06-03 03:20:43Z

0

This works:

a = np.array([1,2,3])
b = np.array([4,5,6])

print(np.concatenate((a.reshape(3, 1), b.reshape(3, 1)), axis = 1))

L Tyrone

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answered Jun 2, 2024 at 12:40

Saksham Nauriyal

1

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Comments

BenjaminClayton · Accepted Answer · 2021-03-16 10:08:13Z

-1

The arrays to be concatenated need to be wrapped in parentheses:

np.concatenate((a, b))
>>> array([1, 2, 3, 4, 5, 6])

answered Mar 16, 2021 at 10:08

BenjaminClayton

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