更新时间:2023-02-05 18:11:58
use idxmax
in groupby
和 slice df
with loc
use idxmax
in groupby
and slice df
with loc
df.loc[df.groupby('id').date.idxmax()]
id product date
2 220 6647 2014-10-16
5 826 3380 2015-05-19
8 901 4555 2014-11-01