statsmodels.tsa.statespace.mlemodel.MLEModel.untransform_params¶
- MLEModel.untransform_params(constrained)[source]¶
Transform constrained parameters used in likelihood evaluation to unconstrained parameters used by the optimizer
- Parameters:
- constrainedarray_like
Array of constrained parameters used in likelihood evaluation, to be transformed.
- Returns:
- unconstrainedarray_like
Array of unconstrained parameters used by the optimizer.
Notes
This is a noop in the base class, subclasses should override where appropriate.