simpeg.directives.AlphasSmoothEstimate_ByEig.survey# property AlphasSmoothEstimate_ByEig.survey# Return survey for all data misfits Assuming that dmisfit is always a ComboObjectiveFunction, return a list containing the survey for each data misfit; i.e. [survey1, survey2, …] Returns: list of simpeg.survey.SurveySurvey for all data misfits.