Add array to a dataframe in python

Question

I have a datframe df, with the df.shape: (971,1)

And I have an array with the anarray.shape: (971,80).

How can I add the array to my dataframe, so that I have the shape: (971,81).

I only find solutions where the array goes into one column, but in my case it should go into several columns.

jezrael · Accepted Answer · 2020-02-25 09:19:52Z

2

I believe you need helper DataFrame with same index like df and then DataFrame.join:

df = df.join(pd.DataFrame(anarray, index=df.index))

answered Feb 25, 2020 at 9:03

jezrael

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