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RE: st: xtmelogit calculation time


From   jverkuilen <jverkuilen@gc.cuny.edu>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: st: xtmelogit calculation time
Date   Tue, 23 Sep 2008 18:15:46 -0400

Starting values can be passed in as an option. Honestly the easiest thing to do is go to the menu system and look in the last tab. Down near the bottom of it will be starting values. Run a model with some values in there and you should see the syntax easily enough. 

-----Original Message-----
From: "Emily Petherick" <ep9@york.ac.uk>
To: statalist@hsphsun2.harvard.edu
Sent: 9/23/2008 5:37 AM
Subject: Re: st: xtmelogit calculation time

Hi Jeph,
              really interested in your response as am having similar 
issues to Changwoo.  How do you go about using these earlier starting 
models as starting values for the later more complex models.

Regards
Emily Petherick.

Jeph Herrin wrote:
> You don't mention the number of observations and panels, but these
> are at least as critical as the number of covariates and random
> coefficients. -xtmelogit- will take a very long time to estimate
> 4 random coefficients if you do not have very many groups.
>
> You may want to start with 1 random coefficient, and use the results
> of that model as starting values for a model with 2 random coeffs,
> and so on.
>
> hth,
> Jeph
>
>
> Changwoo Lee wrote:
>> Hi all,
>> I'm using xtmelogit with 50 covariates including 4 random 
>> coefficients. Two days ago I ran it but I have only 'refining start 
>> values' on the screen. I don't know if Stata still work or not. If it 
>> still work, how much time should i wait for getting the results? 
>> Thanks in advance.
>>
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