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I load a feather file throught python 3.7 that contains arrays inside an array, example:

print(X)

array([array([1, 2]), array([3, 4])])

and i'm trying to convert X to:

array([[1, 2],
       [3, 4]])

How can i do that?

Thank You.

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  • 1
    Numpy already do that. At least the last version (1.20). Indeed, np.array([np.array([1, 2]), np.array([3, 4])]).shape is (2,2) Commented Apr 26, 2021 at 11:59
  • Otherwise this could help numpy.org/doc/stable/reference/generated/… x = np.asarray(x) Commented Apr 26, 2021 at 12:11
  • 1
    @JérômeRichard, you made this array from a list of arrays. The OP has an object dtype array, which is different. Commented Apr 27, 2021 at 2:44

1 Answer 1

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1

Use np.stack:

import numpy as np
np.stack(X)
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