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RE: st: RE: outreg2 + anova = error


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: st: RE: outreg2 + anova = error
Date   Thu, 22 Jun 2006 23:45:39 +0100

I am sympathetic to a lot of whimsy. However, more prosaically, 
I have never experienced an instance in which a Stata
programmer changed the version number and left the 
program otherwise entirely changed. Thus if you ignore
the evidence of version numbers, you ignore useful 
evidence. 

Nick 
n.j.cox@durham.ac.uk 

roy wada replied to Richard Williams

> >My general experience has been that when there are multiple 
> copies of a 
> >program, the SSC version tends to be the most current 
> (although that is not 
> >guaranteed).
> 
> What we had in outreg2 was an atavism, the unexpected appearance of a 
> primitive trait after several generations of absence. With 
> several versions 
> of the program floating around, a throwback happens sometime, 
> especially if 
> you are mixing the codes.
> 
> Darwinian selection does not seem to be working here, though, 
> probably 
> because no self-replication is involved. I wonder if .ado 
> files can be made 
> to act like a macro virus and if Bill G. ever wake up in the 
> middle of the 
> night worrying about it.

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