def invert(self, X):
        try:
            if self.subtract_mean:
                X = X + self.mean
            rval = X * self.normalizers[:, np.newaxis]
            return rval
        except __HOLE__:
            print 'apply() needs to be used before invert()'
        except:
            print "Unexpected error:", sys.exc_info()[0]
dataset/ETHPy150Open hycis/Mozi/mozi/datasets/preprocessor.py/GCN.invert