标签: python pandas pandas-groupby
我需要在'ProductID'列上对df进行分组,并将结果值从'Feature'填充到'Combo'作为字符串,避免重复“
Input dataframe looks like this
Resulting dataframe should look like this
申请groupby后,我无法弄清楚接下来的步骤
df['Combo']=pd.Series(df.groupby('ProductID')['Feature'])