pd.Series.first

pandas.Series.first(offset)

Supported Arguments

argument	datatypes	other requirements
offset	String or Offset type	String argument be a valid frequency alias

Note

Series must have a valid DatetimeIndex and is assumed to already be sorted. This function have undefined behavior if the DatetimeIndex is not sorted.

Example Usage

>>> @bodo.jit
... def f(S, offset):
...     return S.first(offset)
>>> S = pd.Series(np.arange(100), index=pd.date_range(start='1/1/2022', end='12/31/2024', periods=100))
>>> f(S, "2M")
2022-01-01 00:00:00.000000000    0
2022-01-12 01:27:16.363636363    1
2022-01-23 02:54:32.727272727    2
2022-02-03 04:21:49.090909091    3
2022-02-14 05:49:05.454545454    4
2022-02-25 07:16:21.818181818    5
dtype: int64