Panel.empty True if NDFrame is entirely empty [no items], meaning any of the axes are of length 0.

Panel.radd(other, axis=0)

Panel.sub(other, axis=0)

Panel.consolidate(inplace=False)

Panel.isnull()

Panel.sort_index(axis=0, level=None, ascending=True, inplace=False, kind='quicksort', na_position='last', sort_remaining=True)

Panel.product(axis=None, skipna=None, level=None, numeric_only=None, **kwargs)

Panel.get_dtype_counts()

Panel.ix A primarily label-location based indexer, with integer position fallback. .ix[] supports mixed

Panel.asfreq(freq, method=None, how=None, normalize=False)