python - Pandas Data Frame saving into csv file -


i wonder how save new pandas series csv file in different column. suppose have 2 csv files both contains column 'a'. have done mathematical function on them , create new variable 'b'.

for example: 

data = pd.read_csv('filepath')  data['b'] = data['a']*10  # , add value of data.b list b_list.append(data.b)

this continue until of rows of first , second csv file has been reading.

i save column b in new spread sheet both csv files. example need result:

colum1(from csv1)        colum2(from csv2)           data.b.value             data.b.value

by using code:

pd.dataframe(np.array(b_list)).t.to_csv('file.csv', index=false, header=none)

i won't preferred result.

i think need concat column data1 column data2 first:

df = pd.concat(b_list, axis=1) df.to_csv('file.csv', index=false, header=none)

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