Created
July 7, 2021 11:39
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extract column value based on another column pandas dataframe
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| import pandas as pd | |
| file1 = pd.read_csv('./n/oregonhie_descriptive_vars.csv') | |
| file2 = pd.read_csv('./n/oregonhie_inperson_vars.csv') | |
| file2['treatment'] = file2['person_id'] | |
| def proccess(key): | |
| a = file1.loc[file1['person_id'] == key, 'treatment'].iloc[0] | |
| return a | |
| file2['treatment']= file2['treatment'].apply(proccess) | |
| file2.to_csv('output.csv', encoding='utf-8') |
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