xorbits.pandas.Series.dt.is_year_end

Series.dt.is_year_end

Indicate whether the date is the last day of the year.

返回

The same type as the original data with boolean values. Series will have the same name and index. DatetimeIndex will have the same name.

返回类型

Series or DatetimeIndex

参见

is_year_start

Similar property indicating the start of the year.

实际案例

This method is available on Series with datetime values under the .dt accessor, and directly on DatetimeIndex.

>>> dates = pd.Series(pd.date_range("2017-12-30", periods=3))  
>>> dates  
0   2017-12-30
1   2017-12-31
2   2018-01-01
dtype: datetime64[ns]

>>> dates.dt.is_year_end  
0    False
1     True
2    False
dtype: bool

>>> idx = pd.date_range("2017-12-30", periods=3)  
>>> idx  
DatetimeIndex(['2017-12-30', '2017-12-31', '2018-01-01'],
              dtype='datetime64[ns]', freq='D')

>>> idx.is_year_end  
array([False,  True, False])

This docstring was copied from pandas.core.indexes.accessors.CombinedDatetimelikeProperties.