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Re: st: -test- following regress


From   <cthompson@dfpm.utah.edu>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: -test- following regress
Date   Mon, 08 Mar 2004 15:56:27 -0700

I replaced -regress- with -sureg- as suggested and I'm able to 
follow through with the rest of the syntax (thanks Christer), 
but now I have a question regarding the appropriateness of 
using -test- versus, say, a t-test.  Moreover, each model 
estimated suffers from inadequate sample size.  Is -test- still 
appropriate given the limited sample sizes (assuming that 
appropriate disclaimers are initially made for the original 
model estimation)?  
Any input is appreciated!
Clint Thompson   



On 8 Mar 2004 at 21:37, Christer.Thrane@hil.no wrote:

> You cannot use -regress- for this, since you have two different
> dependent variables. You must use -sureg- instead.
> 
> Christer Thrane
> Lillehammer University College
> Norway
> 
> 
> 
>                       <cthompson@dfpm.utah.edu>                         
>                                 Sent by:                         To:    
>                         statalist@hsphsun2.harvard.edu                  
>                                        owner-statalist@hsphsun2.       
>                       cc:                                    harvard.edu
>                                            Subject:  st: -test-
>                       following regress                                 
>                         
> 
> 
>                       08.03.2004 21:30                                  
>                        Please respond to                                
>                          statalist                                    
> 
> 
> 
> 
> 
> 
> Hello Stata-listers ---
> I have a question on how to test equality of coefficients
> following the execution of two simple linear models.  My code
> follows:
>  regress alcon power
>  regress sover power
>  test [#1]power = [#2]power
> Following the test command, the error "equation [#2] not found"
> is returned.
> I've read the relevant Stata help documentation and searched
> the Stata listserve archive with little success.
> Any suggestions?
> Many Thanks in advance!!
> Clint Thompson
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