statsmodels.miscmodels.count.PoissonZiGMLE.expandparams

PoissonZiGMLE.expandparams(params)

expand to full parameter array when some parameters are fixed

Parameters:	params (array) – reduced parameter array
Returns:	paramsfull – expanded parameter array where fixed parameters are included
Return type:	array

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.