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Re: st: nl: missing standar error


From   "JVerkuilen (Gmail)" <jvverkuilen@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: nl: missing standar error
Date   Tue, 18 Sep 2012 13:17:17 -0400

On Tue, Sep 18, 2012 at 9:32 AM,  <chw_wagner@gmx.de> wrote:
> --- Jay wrote:
>> Is the affected coefficient oddly large or very close
>> to 0?
>
> The affected coefficient is very very large in comparion to the unaffected coefficients.

You have an unidentified or barely identified model. The standard
error is undefined because there's an overflow. As to how to identify
it... hmmm. Good question! It has to be done in a way that respects
the substantive question you have. That's not easy. Do you have a good
statistician available to you locally?
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