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shahifaqeer/pandas_df_apply_2_col.py

Created April 26, 2015 09:22
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Apply a function to multiple columns in a pandas dataframe using the axis=1 to do row-wise application!
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pandas_df_apply_2_col.py
import pandas as pd
df = pd.DataFrame({'ID':['1','2','3'], 'J1': [0,2,3], 'J2':[1,4,5]})
print df
lst = ['a','b','c','d','e','f']
df['J3'] = df.apply(lambda row:lst[row['J1']:row['J2']],axis=1)
print df
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