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Re: st: RE: Knowing how a variable was generated


From   Louis Boakye-Yiadom <[email protected]>
To   [email protected]
Subject   Re: st: RE: Knowing how a variable was generated
Date   Sun, 31 Oct 2010 16:37:24 +0000 (GMT)

Nick, thanks for the reply. I was thinking that if it's possible for Stata to store information on the generation of the variable (at least in simple cases), it might be possible to have this feature in Stata.

Louis


--- On Sun, 31/10/10, Nick Cox <[email protected]> wrote:

> From: Nick Cox <[email protected]>
> Subject: st: RE: Knowing how a variable was generated
> To: "'[email protected]'" <[email protected]>
> Date: Sunday, 31 October, 2010, 16:22
> In general, no. How could there be? 
> 
> However, in simple cases for Y calculated somehow from X,
> looking at graphs of Y vs  X might give a clue. 
> 
> Nick 
> [email protected]
> 
> 
> Louis Boakye-Yiadom
> 
> If some of the variables in a dataset were generated by a
> transformation or combination of some other variable(s) in
> the data, is it possible to know this without seeing the
> relevant log or do file? For example, consider a situation
> where the variables in the data include A, B, C, and D, and
> B was generated as follows:
> B = A*C + D
> Is there a command for determining how B was generated?
> Thanks.
> 
> 
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