def _scale_data(self, Y):
        self._Ymax = Y.max()
        self._Ymin = Y.min()
        return (Y - self._Ymin) / (self._Ymin - self._Ymax) - 0.5
dataset/ETHPy150Open SheffieldML/GPy/GPy/models/warped_gp.py/WarpedGP._scale_data/swapped operands of `-`