dhowarth217
dhowarth217
/ anti_join.py
Created
September 24, 2022 20:43
— forked from sainathadapa/anti_join.py
anti-join-pandas
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| import pandas as pd | |
| def anti_join(x, y, on): | |
| """Return rows in x which are not present in y""" | |
| ans = pd.merge(left=x, right=y, how='left', indicator=True, on=on) | |
| ans = ans.loc[ans._merge == 'left_only', :].drop(columns='_merge') | |
| return ans | |
| def anti_join_all_cols(x, y): |