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st: RE: Knowing how a variable was generated


From   Nick Cox <n.j.cox@durham.ac.uk>
To   "'statalist@hsphsun2.harvard.edu'" <statalist@hsphsun2.harvard.edu>
Subject   st: RE: Knowing how a variable was generated
Date   Sun, 31 Oct 2010 16:22:31 +0000

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 
n.j.cox@durham.ac.uk 

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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