pandas :将时间戳转换为 datetime.date

2022-01-13 00:00:00 python pandas datetime timestamp

问题描述

我有一个包含时间戳数据的 pandas 列

I have a pandas column of Timestamp data

In [27]: train["Original_Quote_Date"][6] 
Out[27]: Timestamp('2013-12-25 00:00:00')

如何检查这些对象与 datetime.date 类型的对象的等价性

How can check equivalence of these objects to datetime.date objects of the type

datetime.date(2013, 12, 25)

解决方案

使用.date方法:

In [11]: t = pd.Timestamp('2013-12-25 00:00:00')

In [12]: t.date()
Out[12]: datetime.date(2013, 12, 25)

In [13]: t.date() == datetime.date(2013, 12, 25)
Out[13]: True

<小时>

要与 DatetimeIndex(即时间戳数组)进行比较，您需要反过来:

To compare against a DatetimeIndex (i.e. an array of Timestamps), you'll want to do it the other way around:

In [21]: pd.Timestamp(datetime.date(2013, 12, 25))
Out[21]: Timestamp('2013-12-25 00:00:00')

In [22]: ts = pd.DatetimeIndex([t])

In [23]: ts == pd.Timestamp(datetime.date(2013, 12, 25))
Out[23]: array([ True], dtype=bool)

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