def zero_fill_missing_phenotypes(self):
        """
        Fill in missing phenotypes and scored types by listing any missing data as negative

        Returns:
            CellDataFrame: The CellDataFrame modified.
        """
        if self.is_uniform(verbose=False): return self.copy()
        output = self.copy()
        def _do_fill(d,names):
            old_names = list(d.keys())
            old_values = list(d.values())
            missing = set(names)-set(old_names)
            return dict(zip(old_names+list(missing),old_values+([0]*len(missing))))
        ## Need to make these uniform
        pnames = self.phenotypes
        output['phenotype_calls']= output.apply(lambda x:
            _do_fill(x['phenotype_calls'],pnames)
            ,1)
        return output