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Re: st: Define nested logit with many choices
From
Mauricio Esteban Cuak <[email protected]>
To
[email protected]
Subject
Re: st: Define nested logit with many choices
Date
Sat, 3 Aug 2013 16:23:41 -0500
Still looking for an answer to this, thanks!
2013/7/31 Mauricio Esteban Cuak <[email protected]>:
> Hi,
>
> I'm considering a problem with around 200 alternatives and around 4
> nests each with, say, 50 alternatives.
>
> Consider the example in the help with the built-in dataset restaurant.dta
>
> ****** Begin Code **********
> clear
> version 12
> webuse restaurant.dta
>
> nlogitgen type = restaurant(fast: Freebirds | MamasPizza, family:
> CafeEccell | LosNortenos | WingsNmore, fancy:
> Christophers | MadCows)
>
> nlogit chosen cost distance rating || type: income kids, base(family)
> || restaurant:, noconst case(family_id)
>
> ****** End Code *************
>
> Suppose however, that I want to define the nests by the variable
> "rating" (by which restaurants are classified), so that each nests
> contains all restaurants that have rating == x.
> In this particular case, it is easy to list all the restaurants that
> fit a certain rating, but what if I have (like in my case) 50
> restaurants per rating level?
>
> I can manually input those restaurant names per category, but there
> must be an easier and less error prone way!
> Thanks for your time,
>
> ME
> *
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