pandas 熊猫从日期时间索引中删除秒
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时间:2020-09-14 02:07:12 来源:igfitidea点击:
pandas remove seconds from datetime index
提问by Runner Bean
I have a pandas dataFrame called 'df' as follows
我有一个名为“df”的Pandas数据框,如下所示
value
2015-09-27 03:58:30 1.0
2015-09-27 03:59:30 1.0
2015-09-27 04:00:30 1.0
2015-09-27 04:01:30 1.0
I just want to strip out the seconds to get this
我只想去掉秒来得到这个
value
2015-09-27 03:58:00 1.0
2015-09-27 03:59:00 1.0
2015-09-27 04:00:00 1.0
2015-09-27 04:01:00 1.0
How can i do this?
我怎样才能做到这一点?
ive tried things like
我试过这样的事情
df.index.to_series().apply(datetime.replace(second=0, microsecond=0))
but i always get errors
但我总是出错
TypeError: descriptor 'replace' of 'datetime.datetime' object needs an argument
回答by Nickil Maveli
You could use datetime.replace
to alter the second's attribute as shown:
您可以使用datetime.replace
更改第二个的属性,如下所示:
df.index = df.index.map(lambda x: x.replace(second=0))