python 2.7 - Adding a list of lists in a pandas dataframe column -


i have data frame 

a  b   c  0  1   2 1  6   5

i need add list of lists in 4th column of dataframe . becomes 

a  b   c   d 0  1   2   [[4,-0.05],[0.03,[-0.02,0.02]],[0.01,-0.03]] 1  6   5   [[4,-0.35],[0.07,[-0.02,0.02]],[0.91,-0.03]]

please note list of lists in column d. unable find way add type of column data pandas dataframe

appreciate help. in advance

you create new series as

in [11]: df['d'] = pd.series([[[4,-0.05],[0.03,[-0.02,0.02]],[0.01,-0.03]],                               [[4,-0.35],[0.07,[-0.02,0.02]],[0.91,-0.03]]]) in [12]: df out[12]:     b  c                                                  d 0  0  1  2  [[4, -0.05], [0.03, [-0.02, 0.02]], [0.01, -0.... 1  1  6  5  [[4, -0.35], [0.07, [-0.02, 0.02]], [0.91, -0....

however, i'm not sure, why want store data in structure!


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