def _base2sample(self, e):
        return (e - self._center) / self._sigmas
Asserts that the DataFrame is monotonic.
dataset/ETHPy150Open pybrain/pybrain/pybrain/optimization/distributionbased/snes.py/SNES._base2sample--crossover with--dataset/ETHPy150Open TomAugspurger/engarde/engarde/checks.py/is_monotonic