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Re: st: collinearity/non-convergence problem with -asclogit- command


From   Cielo Magno <cielomagno@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: collinearity/non-convergence problem with -asclogit- command
Date   Tue, 13 Oct 2009 01:02:51 -0400

Thanks for the response Clive.  I tried to do what you suggested just
to test if the zeros are the ones causing the collinearity, but it
didn't work either. Plus, if I exclude observations with zero values
in the ads variable, that will exclude valid alternatives in the
choice model.

Cielo

On Mon, Oct 12, 2009 at 11:36 PM, Clive Nicholas
<clivelists@googlemail.com> wrote:
> Cielo Magno replied to Jade Redoblado:
>
>> Hi Jade!  I have 18,652 observation and 1,841 cases.
>
> A better's punt, but what if you run your -asclogit- model without the
> zero-observations on the -total_ads- variable?
>
> --
> Clive Nicholas
>
> [Please DO NOT mail me personally here, but at
> <clivenicholas@hotmail.com>. Please respond to contributions I make in
> a list thread here. Thanks!]
>
> "My colleagues in the social sciences talk a great deal about
> methodology. I prefer to call it style." -- Freeman J. Dyson.
>
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