def _ppf(self, q, a, b):
        if self.a > 0:
            return _norm_isf(q*self._sb + self._sa*(1.0-q))
        else:
            return _norm_ppf(q*self._nb + self._na*(1.0-q))
dataset/ETHPy150Open scipy/scipy/scipy/stats/_continuous_distns.py/truncnorm_gen._ppf/original