Series.cat.add_categories(*args, **kwargs)

Index.memory_usage(deep=False)

DataFrame.stack(level=-1, dropna=True)

Series.plot.hist(bins=10, **kwds)

StataReader.data_label()

CategoricalIndex.asof_locs(where, mask)

Panel.keys()

TimedeltaIndex.get_indexer(target, method=None, limit=None, tolerance=None)

Panel.groupby(function, axis='major')

Styler.use(styles)