Series.count(level=None)

Series.cat.codes

Series.str.zfill(width)

Series.dt.weekofyear The week ordinal of the year

Series.ravel(order='C')

Series.last_valid_index()

Series.sort_index(axis=0, level=None, ascending=True, inplace=False, sort_remaining=True)

Series.str.split(pat=None, n=-1, expand=False)

Series.to_json(path_or_buf=None, orient=None, date_format='epoch', double_precision=10, force_ascii=True, date_unit='ms', default_handler=None

Series.mad(axis=None, skipna=None, level=None)