color='black'
                    )  #,  y_error=log10(unumpy.std_devs(ratios_dict['blue_y'])))

                #--Red points
                if len(ratios_dict['red_x']) > 0:
                    dz.data_plot(
                        range_red,
                        log10(
                            unumpy.nominal_values(
                                ratios_dict['line_Flux_Red'])),
                        'Observed fluxes',
                        markerstyle='o',
                        color='black'
                    )  #,  y_error=log10(unumpy.std_devs(ratios_dict['red_y'])))

            E_BV = dz.Ebv_from_cHbeta(cHbeta_in_MagEr, red_curve, R_v)

            Xx_blue = dz.reddening_Xx(ratios_dict['line_wave_Blue'], red_curve,
                                      R_v)
            Xx_red = dz.reddening_Xx(ratios_dict['line_wave_Red'], red_curve,
                                     R_v)
            Blue_int = ratios_dict['line_Flux_Blue'] * unum_pow(
                10, 0.4 * Xx_blue * E_BV)
            Red_int = ratios_dict['line_Flux_Red'] * unum_pow(
                10, 0.4 * Xx_red * E_BV)

            label_regression = r'Line intensities {rd_curve}: $c(H\beta) = {Value} \pm {Error}$'.format(
                rd_curve=red_curve,
                Value=round(cHbeta_all_MagEr.nominal_value, 3),
                Error=round(cHbeta_all_MagEr.std_dev, 3))