mars.dataframe.Series.dt.strftime¶

Series.dt.strftime(*args, **kwargs)¶

Convert to Index using specified date_format.

Return an Index of formatted strings specified by date_format, which supports the same string format as the python standard library. Details of the string format can be found in python string format doc.

参数: date_format (str) – Date format string (e.g. “%Y-%m-%d”).
返回: NumPy ndarray of formatted strings.
返回类型: ndarray

参见

to_datetime: Convert the given argument to datetime.
DatetimeIndex.normalize: Return DatetimeIndex with times to midnight.
DatetimeIndex.round: Round the DatetimeIndex to the specified freq.
DatetimeIndex.floor: Floor the DatetimeIndex to the specified freq.

实际案例

>>> import mars.dataframe as md
>>> rng = md.date_range(md.Timestamp("2018-03-10 09:00"),
...                     periods=3, freq='s')
>>> rng.strftime('%B %d, %Y, %r').execute()
Index(['March 10, 2018, 09:00:00 AM', 'March 10, 2018, 09:00:01 AM',
       'March 10, 2018, 09:00:02 AM'],
      dtype='object')

mars.dataframe.Series.dt.normalize

mars.dataframe.Series.dt.round