statsmodels.tsa.statespace.mlemodel.MLEModel.untransform_params

MLEModel.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 evalution, 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.