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RE: st: RE: error code from bssize refine


From   Murat Genc <murat.genc@otago.ac.nz>
To   "'statalist@hsphsun2.harvard.edu'" <statalist@hsphsun2.harvard.edu>
Subject   RE: st: RE: error code from bssize refine
Date   Thu, 24 Jan 2013 22:07:13 +0000

Thank you very much Brian.  I hope you find time to get this fixed at some point.  It will be most useful and appreciated.

Murat

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-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Brian P. Poi
Sent: Friday, 25 January 2013 3:40 a.m.
To: statalist@hsphsun2.harvard.edu
Subject: Re: st: RE: error code from bssize refine

On 01/24/2013 05:35 AM, Murat Genc wrote:
> Dear Statalist,
>
> I am using -bssize- from SJ 11-4 in Stata 12.1. All is well with the following three lines of commands:
>
> 	bssize initial, tau(0.01) pdb(5)
> 	set seed 1
> 	bootstrap, reps(1326) saving(one): sureg (`sequat1') (`sequat2')(`sequat3') 	(`sequat4'), c(1/`k')
>
> I can see the coefficients and their bootstrapped standard errors for all the equations I estimate.
>
> However, when I next type the command
>
> 	bssize refine using one
>
> I get the error message
>
> 	no valid variables found
> 	r(498);
>
> I fail to understand why I get an error.  I am following the example in the SJ paper I referred to above. The set of commands I use is identical to the ones in the paper (and also to the ones in the help file).
>
> I searched the usual sources but I couldn't find the answer.  I'll be grateful if someone can help.
>
> Murat
>

Murat,

The short answer is that -bssize- just is not up to handling multple-equation estimation commands as it is now written.  When you use -bootstrap- with a multiple-equation command, the names of the variables in the results dataset begin with an equation name, and -bssize refine- is not set up to deal with variables named like that.  I will see if I can get this fixed at some point.

    -- Brian Poi
    -- bpoi@stata.com

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