Dear Stephane Hess,
Is there an easy way to impose restrictions on parameters, such as Beta_time_bus = Beta_time_train, without directly manipulating the utility functions?
Kind regards
Andy
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Parameter restrictions
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stephanehess
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Re: Parameter restrictions
Hi Andy
if you really want to set two parameters to be the same, then it's much easier to just replace them by a single joint parameter. Using constraints in estimation is never a good idea, really. It is possible in the new version of Apollo, via passing the constraints setting to maxLik (maxLik_settings inside estimate_settings), but again, it's not something I tend to do.
Best wishes
Stephane
if you really want to set two parameters to be the same, then it's much easier to just replace them by a single joint parameter. Using constraints in estimation is never a good idea, really. It is possible in the new version of Apollo, via passing the constraints setting to maxLik (maxLik_settings inside estimate_settings), but again, it's not something I tend to do.
Best wishes
Stephane
Re: Parameter restrictions
Dear Stephane,
Thank you very much!
Best regards
Andy
Thank you very much!
Best regards
Andy