将numpy数组作为列添加到Pandas数据框

import numpy as np
import pandas as pd
import scipy.sparse as sparse

df = pd.Dataframe(np.arange(1,10).reshape(3,3))arr = sparse.coo_matrix(([1,1,1], ([0,1,2], [1,2,0])), shape=(3,3))df['newcol'] = arr.toarray().tolist()print(df)

产量

   0  1  2     newcol0  1  2  3  [0, 1, 0]1  4  5  6  [0, 0, 1]2  7  8  9  [1, 0, 0]