CategoricalIndex.as_unordered(*args, **kwargs)

DataFrameGroupBy.idxmax(axis=0, skipna=True) Return index of first occurrence of maximum over requested

Panel4D.where(cond, other=nan, inplace=False, axis=None, level=None, try_cast=False, raise_on_error=True)

DatetimeIndex.dayofyear The ordinal day of the year

TimedeltaIndex.ceil(freq)

classmethod MultiIndex.from_product(iterables, sortorder=None, names=None)

Series.dt.is_quarter_start Logical indicating if first day of quarter (defined by frequency)

Series.dt.freq get/set the frequncy of the Index

CategoricalIndex.to_series(**kwargs)

CategoricalIndex.get_value(series, key)