statsmodels.base.model.GenericLikelihoodModel.expandparams#
- GenericLikelihoodModel.expandparams(params)[source]#
Expand to full parameter array when some parameters are fixed
- Parameters:
- params
ndarray Reduced parameter array.
- params
- Returns:
- paramsfull
ndarray Expanded parameter array where fixed parameters are included.
- paramsfull
Notes
Calling this requires that self.fixed_params and self.fixed_paramsmask are defined.
developer notes:
This can be used in the log-likelihood to …
This could also be replaced by a more general parameter transformation.