pandas.period_range(start=None, end=None, periods=None, freq='D', name=None)

Index.intersection(other)

GroupBy.median()

Index.shift(periods=1, freq=None)

DatetimeIndex.values return the underlying data as an ndarray

TimedeltaIndex.names

MultiIndex.asof_locs(where, mask)

Series.dt.daysinmonth The number of days in the month New

Series.dt.month The month as January=1, December=12

DataFrameGroupBy.shift(periods=1, freq=None, axis=0)