Series with 1d array to 2d numpy array

Question

I have a Pandas Series containing 1D arrays/lists. I want to extract it to a 2D NumPy array.

s=pd.Series([[1,2,3,4],[5,6,7,8]])

With to_numpy() I get a 1D array looking like this

array([list([1, 2, 3, 4]), list([5, 6, 7, 8])], dtype=object)

However, I want something like array([[1,2,3,4],[5,6,7,8]]).

jezrael · Accepted Answer · 2020-05-19 11:57:28Z

1

Convert first to lists and then to array:

arr = np.array(s.tolist())
print (arr)
[[1 2 3 4]
 [5 6 7 8]]

answered May 19, 2020 at 11:57

jezrael

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1 Comment

Hello meanwhile i have found a solution anyways:) i used np.array([*s.array])