change parameters in OrderedDict to list with or without uncertainties

        :param p: parameters in OrderedDict
        :return: parameters in list
        :note: internal function

def _set_params(self, p):
        """
        change parameters in OrderedDict to list with or without uncertainties

        :param p: parameters in OrderedDict
        :return: parameters in list
        :note: internal function
        """
        if self.force_norm:
            params = [value.n for key, value in p.items()]
        else:
            params = [value for key, value in p.items()]
        return params