pandas从其他2列中删除列值

使用 np.where

df['required'] = np.where(df.condition == df.team, df.team2, df.team)

        team     team2  condition   required
0  Australia  SriLanka   SriLanka  Australia
1  Australia  SriLanka   SriLanka  Australia
2  Australia  SriLanka   SriLanka  Australia
3  Australia  SriLanka  Australia   SriLanka
4  Australia  SriLanka  Australia   SriLanka

你可以用 .apply() :

df['Required_Col'] = df.apply(lambda x: x['team2'] if (x['condition']==x['team']) else x['team'], axis=1)

输出:

        team    team2       condition   Required_Col
0   Australia   SriLanka    SriLanka    Australia
1   Australia   SriLanka    SriLanka    Australia
2   Australia   SriLanka    SriLanka    Australia
3   Australia   SriLanka    Australia   SriLanka
4   Australia   SriLanka    Australia   SriLanka