DataFrame.sub(other, axis='columns', level=None, fill_value=None)

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

DataFrame.size number of elements in the NDFrame

DataFrame.take(indices, axis=0, convert=True, is_copy=True, **kwargs)

DataFrame.select_dtypes(include=None, exclude=None)

DataFrame.merge(right, how='inner', on=None, left_on=None, right_on=None, left_index=False, right_index=False, sort=False, suffixes=('_x',

DataFrame.eq(other, axis='columns', level=None)

DataFrame.to_panel()

DataFrame.divide(other, axis='columns', level=None, fill_value=None)

DataFrame.style Property returning a Styler object containing methods for building a styled HTML representation fo