MulSeries.ds ================= .. currentmodule:: muldataframe .. attribute:: MulSeries.ds A partial copy of the values series. It is different from the :doc:`MulSeries.ss ` in that its values are not copied but refer to the values of the values series while its index and name are deep-copied from the values series. Use this attribute if you want to save some memory or use the same name to refer to the values series/dataframe of MulSeries/MulDataFrame.