pandas.infer_freq¶
-
pandas.
infer_freq
(index, warn: bool = True) → Union[str, NoneType][source]¶ Infer the most likely frequency given the input index. If the frequency is uncertain, a warning will be printed.
- Parameters
- indexDatetimeIndex or TimedeltaIndex
If passed a Series will use the values of the series (NOT THE INDEX).
- warnbool, default True
- Returns
- str or None
None if no discernible frequency TypeError if the index is not datetime-like ValueError if there are less than three values.