pastas.stats.signatures.date_min#
- date_min(series)[source]#
Compute the average date of the minimum head value with circular statistics.
- Parameters
series (pandas.Series) – Pandas Series with DatetimeIndex and head values.
- Returns
Average date of the minimum head value.
- Return type
Notes
Average date of the minimum head value. The higher the date, the later the minimum head value occurs in the year, and vice versa.
The average date is computed by taking the average of the day of the year of the minimum head value for each year, using circular statistics. We refer to Fisher [1995] (page 31) for more information on circular statistics.