pandas / 0.24.2 / reference / api / pandas.series.to_period.html /

pandas.Series.to_period

Series.to_period(freq=None, copy=True) [source]

Convert Series from DatetimeIndex to PeriodIndex with desired frequency (inferred from index if not passed).

Parameters:
freq : string, default
Returns:
ts : Series with PeriodIndex

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https://pandas.pydata.org/pandas-docs/version/0.24.2/reference/api/pandas.Series.to_period.html