statsmodels.tsa.statespace.exponential_smoothing.ExponentialSmoothing.opg_information_matrix¶

ExponentialSmoothing.opg_information_matrix(params, transformed=True, includes_fixed=False, approx_complex_step=None, **kwargs)¶

Outer product of gradients information matrix

Parameters:¶

paramsarray_like, optional

Array of parameters at which to evaluate the loglikelihood function.

**kwargs

Additional arguments to the loglikeobs method.

References

Berndt, Ernst R., Bronwyn Hall, Robert Hall, and Jerry Hausman. 1974. Estimation and Inference in Nonlinear Structural Models. NBER Chapters. National Bureau of Economic Research, Inc.