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RE: st: Estimation Storage with XTPQML


From   "Martin Weiss" <martin.weiss1@gmx.de>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: st: Estimation Storage with XTPQML
Date   Fri, 24 Sep 2010 23:46:07 +0200

<>

Works for me, just as for Maarten. 

***********
webuse ships, clear
xtset ship

xtpoisson accident op_75_79 co_65_69 /* 
*/  co_70_74 co_75_79,  /* 
*/ exposure(service) irr

xtpqml accident op_75_79 co_65_69 /* 
*/  co_70_74 co_75_79

est store foo
***********


Maybe show your entire code for us to give further advice...


HTH
Martin


-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of milet
Sent: Freitag, 24. September 2010 18:22
To: statalist@hsphsun2.harvard.edu
Subject: Re: st: Estimation Storage with XTPQML

Hi,
Thank you for the quick answer and the tips.
I am using Stata at the office, so I do not know where the xtpqml comes 
from (I actually thought it was installed while upgrading Stata).
I tried your code, and got the same error message as previously 
mentionned, when trying the "est store foo"

"last estimation results not found, nothing to store".
r(301);




Maarten buis a écrit :
> --- On Fri, 24/9/10, milet wrote:
>   
>> I use Stata10 and have problems when I try to store
>> estimations after a xtpqml procedure.
>> Stata estimates properly the coefficients, and then
>> calculates the robust standard errors, but when it comes to
>> store the estimation, I get the following error message:
>> "last estimation results not found, nothing to store".
>> r(301);
>> Is it because Stata only keeps in memory the estimation
>> with robust standard errors, and does not consider it as an
>> estimation (thus not able to store it?).
>>     
>
> I assume that you got -xtpqml- by downloading it from SSC, by
> typing in Stata -ssc install xtpqml-. As always, you are asked
> to tell where user written programs come from when asking 
> questions about them. This is in your own interest, as there 
> are often multiple version floating around cyberspace, and the
> answer can obviously depend on which version you are using.
>
> Anyhow, I tried to reproduce your error on my Stata 10, and I
> could not. The code below runs without problem. That obviously
> makes it hard for me to diagnose the problem you encountered.
> Can you tell us what you did different compared to the example 
> below?
>
> *---------------- begin example --------------------
> webuse ships, clear
> xtset ship
> xtpqml accident op_75_79 co_65_69 co_70_74 co_75_79,  irr fe
> est store foo
> est restore foo
> ereturn display , eform(irr)
> *------------------- end example --------------------
> (For more on examples I sent to the Statalist see: 
> http://www.maartenbuis.nl/example_faq ) 
>
> Hope this helps,
> Maarten
>
> --------------------------
> Maarten L. Buis
> Institut fuer Soziologie
> Universitaet Tuebingen
> Wilhelmstrasse 36
> 72074 Tuebingen
> Germany
>
> http://www.maartenbuis.nl
> --------------------------
>
>
>       
>
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