Panel.var(axis=None, skipna=None, level=None, ddof=1, numeric_only=None, **kwargs)

CategoricalIndex.asof(label)

StataReader.data(**kwargs)

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

Index.format(name=False, formatter=None, **kwargs)

Index.size return the number of elements in the underlying data

Series.dt.tz_localize(*args, **kwargs)

Index.base return the base object if the memory of the underlying data is shared

Series.dt.days Number of days for each element.

MultiIndex.flags