Panel4D.join(*args, **kwargs)

DataFrame.count(axis=0, level=None, numeric_only=False)

MultiIndex.argmin(axis=None)

Series.nonzero()

TimedeltaIndex.is_numeric()

DatetimeIndex.resolution = None

Panel4D.sub(other, axis=0)

Panel4D.isnull()

CategoricalIndex.remove_unused_categories(*args, **kwargs)

CategoricalIndex.str()