def _hessian_complex_step(self, params, **kwargs):
        # the default epsilon can be too small
        epsilon = _get_epsilon(params, 3., None, len(params))
        kwargs['transformed'] = True
        kwargs['complex_step'] = True
        hessian = approx_hess_cs(
            params, self.loglike, epsilon=epsilon, kwargs=kwargs)

        return hessian / (self.nobs - self.ssm.loglikelihood_burn)
Hour, 24-hour format; i.e. '00' to '23'
dataset/ETHPy150Open statsmodels/statsmodels/statsmodels/tsa/statespace/mlemodel.py/MLEModel._hessian_complex_step--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.4/django/utils/dateformat.py/TimeFormat.H