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pandas.Series.to_period

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

Convert Series from DatetimeIndex to PeriodIndex.

Parameters
freq :str, default None

Frequency associated with the PeriodIndex.

copy :bool, default True

Whether or not to return a copy.

Returns
Series

Series with index converted to PeriodIndex.

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https://pandas.pydata.org/pandas-docs/version/1.4.0/reference/api/pandas.Series.to_period.html