def SetPrev ( self, page ):
        self.previous = page

    #---------------------------------------------------------------------------
    #  Returns the next page after this one:
    #---------------------------------------------------------------------------
input: Pandas.DataFrame of dtype=np.float64 array, of dimensions
dataset/ETHPy150Open enthought/traitsui/traitsui/wx/ui_wizard.py/UIWizardPage.SetPrev--crossover with--dataset/ETHPy150Open MicrosoftResearch/Azimuth/azimuth/features/featurization.py/normalize_features