def to_cr(self):
        """Convert container to a complex resistivity container, using the
        CPA-conversion.

        Kemna, 2000

        COMPLEX RESISTIVITY COPPER MlNERALlZATlONt SPECTRA OF PORPHYRY
        Van Voorhis, G. D.; Nelson, P. H.; Drake, T. L.
        Geophysics (1973 Jan 1) 38 (1): 49-60.

        Application of complex resistivity tomography to field data from
        a kerosene-contaminated siteGold Open Access Authors: A. Kemna, E.
        Räkers and A. Binley DOI: 10.3997/2214-4609.201407300

        Gianluca Fiandaca, Esben Auken, Anders Vest Christiansen, and
        Aurélie Gazoty (2012). ”Time-domain-induced polarization:
        Full-decay forward modeling and 1D laterally constrained inversion
        of Cole-Cole parameters.” GEOPHYSICS, 77(3), E213-E225.
        https://doi.org/10.1190/geo2011-0217.1

        """
        data_new = self.data.copy()
        data_new['rpha'] = -1.5 * data_new['chargeability']
        # now that we have magnitude and phase, compute the impedance Zt
        data_new['Zt'] = data_new['r'] * np.exp(data_new['rpha'] * 1j / 1000.0)
        cr = reda.CR(data=data_new)
        return cr
def to_cr ( self ) : data_new = self . data . copy ( ) data_new [ 'rpha' ] = - 1.5 * data_new [ 'chargeability' ] data_new [ 'Zt' ] = data_new [ 'r' ] * np . exp ( data_new [ 'rpha' ] * 1j / 1000.0 ) cr = reda . CR ( data = data_new ) return cr
Convert container to a complex resistivity container, using the
        CPA-conversion.

        Kemna, 2000

        COMPLEX RESISTIVITY COPPER MlNERALlZATlONt SPECTRA OF PORPHYRY
        Van Voorhis, G. D.; Nelson, P. H.; Drake, T. L.
        Geophysics (1973 Jan 1) 38 (1): 49-60.

        Application of complex resistivity tomography to field data from
        a kerosene-contaminated siteGold Open Access Authors: A. Kemna, E.
        Räkers and A. Binley DOI: 10.3997/2214-4609.201407300

        Gianluca Fiandaca, Esben Auken, Anders Vest Christiansen, and
        Aurélie Gazoty (2012). ”Time-domain-induced polarization:
        Full-decay forward modeling and 1D laterally constrained inversion
        of Cole-Cole parameters.” GEOPHYSICS, 77(3), E213-E225.
        https://doi.org/10.1190/geo2011-0217.1