code: def variable_relative(self, r: float) -> mm.ModelMapper:
          
          return self.previous_variable.mapper_from_gaussian_tuples(self.gaussian_tuples, r=r)
docs: Parameters
          ----------
          r
              The relative width of gaussian priors
  
          Returns
          -------
          A model mapper created by taking results from this phase and creating priors with the defined relative width.