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st: RE: RE: RE: Variable list


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: RE: RE: Variable list
Date   Mon, 7 Nov 2005 10:32:07 -0000

That's not forced upon you by anything. If x1 ... x10
are of the same status and belong together then much 
will be made easier by using -order- to make them 
adjacent in the data set. 

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

Wanli Zhao
 
> Thanks, Nick. Usually, I'd say we may have to use macro most 
> of the time.

Nick Cox
 
> What you ask for is called a local macro in Stata and is 
> documented under 
> 
> . help macro
> 
> and in [U] 18.3.1. For example, 
> 
> . local myx "x1 x2 x3 x4 x5 x6 x7 x8 x9 x10"
> . regress y `myx' 
> 
> However, depending on the order of your variables, 
> 
> . regress y x1-x10 
> 
> may be equivalent; when that it is true, this syntax is in my view
> preferable. 
 
Wanli Zhao
 
> > Could I create a list of
> > variables I use in common in some regressions? For instance, x1, 
> > x2,...,x10 are the variables I always use in 5 regressions. To save 
> > typing, could I generate a shortcut named "control", which includes 
> > all those variables so that I only use the name "control" in the 
> > regressions? In Eviews, it is called a "group" of 
> variables. My search 
> > did not give me anything.

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