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Re: st: svy regress Stata 9 vs Stata 8


From   Robert Duval <rduval@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: svy regress Stata 9 vs Stata 8
Date   Sat, 6 Aug 2005 22:18:04 -0400

I know the differences on the s.e.'s are really minimal, but present
nevertheless.

Anyway, on the more important issue of speed svysetting on version 9
doesn't make any difference.

Hopefully, the Stata Corp. people will join the discussion and provide
some further clarifications,

thanks anyway,
robert

On 8/6/05, Richard Williams <Richard.A.Williams.5@nd.edu> wrote:
> At 08:46 PM 8/6/2005 -0400, Robert Duval wrote:
> >Dear all,
> >
> >I recently started working with Stata9 and while using svy: regress I
> >noticed it runned slower than it's counterpart (svyregress) in Stata8.
> >  Also the decimals reported in the standard errors differ slightly
> >across versions.
> 
> I just tried a few svy runs.  Didn't notice any differences in the standard
> errors (trivial differences wouldn't really bother me anyway) but the speed
> difference in the problem I ran was about 3:1 in favor of version 8.2.  I
> don't know why; perhaps in making the svy commands more general and
> powerful they got slowed down a bit. You might try svy-setting them in
> version 9 to see if that helps any.  Otherwise, if speed is of the essence,
> version control may be the way to go for now.
> 
> -------------------------------------------
> Richard Williams, Notre Dame Dept of Sociology
> OFFICE: (574)631-6668, (574)631-6463
> FAX:    (574)288-4373
> HOME:   (574)289-5227
> EMAIL:  Richard.A.Williams.5@ND.Edu
> WWW (personal):    http://www.nd.edu/~rwilliam
> WWW (department):    http://www.nd.edu/~soc
> 
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