pandas.infer_freq#
- pandas.infer_freq(index)[source]#
Infer the most likely frequency given the input index.
- Parameters
- indexDatetimeIndex or TimedeltaIndex
If passed a Series will use the values of the series (NOT THE INDEX).
- Returns
- str or None
None if no discernible frequency.
- Raises
- TypeError
If the index is not datetime-like.
- ValueError
If there are fewer than three values.
Examples
>>> idx = pd.date_range(start='2020/12/01', end='2020/12/30', periods=30) >>> pd.infer_freq(idx) 'D'