Re: st: mlogit, bootstrap, mfx: "no observations"

["jean ries" <jean.ries.l@gmail.com>]

You should put the command -set trace on- (without the hyphens) before
the loop. Then you will be able to see exactly where the problem
occurs.

By the way, just as Stas Kolenikov, I wonder why you don't want to use
the MLE standard errors.

jean

On 8/24/06, Guido Heineck <Guido.Heineck@gmx.net> wrote:
> Dear all,
>
> I have cross-sectional data and run a multinomial logit model for a dependent var with 4 categories (by gender). Following the model, I calculate marginal effects for a subset of covariates.
> I have to bootstrap the standard errors and here's where my problem comes in: Without the bootstrap option, everything runs fine. Bootstrapping the s.e. also works fine - without marginal effects. Everything together however generates the following error message:
>
> no observations
> r(2000)
>
> Here's the relevant part of my code:
>
> foreach c of local foo {;
> mlogit yvar `xvars' `c' if male==0, vce(bootstrap, reps(100) seed(123));
> mfx , predict(p outcome(1)) var(`c');
> mfx , predict(p outcome(2)) var(`c');
> mfx , predict(p outcome(3)) var(`c');
> mfx , predict(p outcome(4)) var(`c');
> };
>
> Any ideas on what I am missing here? Thanks for any helpful suggestions.
>
> Guido
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