[PYTHON] This is a sample of function application in dataframe.

test data

import pandas as pd

0 1 10
1 2 20
2 3 30

Sample source

def fnc(dt):
    return dt["A"]+dt["B"]

df["C"]=df.apply(lambda dt :  fnc(dt) ,axis=1  ) 


0 1 10 11
1 2 20 22
2 3 30 33

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