statsmodels.tsa.statespace.exponential_smoothing.ExponentialSmoothing.untransform_params

ExponentialSmoothing.untransform_params(constrained)

Transform constrained parameters used in likelihood evaluation to unconstrained parameters used by the optimizer

Parameters:

constrained (array_like) – Array of constrained parameters used in likelihood evaluation, to be transformed.

Returns:

unconstrained – Array of unconstrained parameters used by the optimizer.

Return type:

array_like

Notes

This is a noop in the base class, subclasses should override where appropriate.