def _check_measures_are_relatively_valid(axon_object, axonmyelin_object,
    attribute):
    """
    Checks if the attribute is positive and if the myelinated axon has a greater value
    """
    val_axon = getattr(axon_object, attribute)
    val_axonmyelin = getattr(axonmyelin_object, attribute)
    if val_axon > 0 and val_axonmyelin > 0 and val_axonmyelin > val_axon:
        return True
    else:
        return False
