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st: RE: Pair-variables and creating a new dataset


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: Pair-variables and creating a new dataset
Date   Sun, 19 Aug 2007 16:47:13 +0100

A prior question is what implications are 
there for the testing you propose given 

1. the dependence structure created by these
pairwise calculations 

2. the multiple comparison aspect. 

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

Myriam Nourry
  
> I am a new user of Stata and I am wondering if I can
> do what I think whith Stata. 
>  
> I have a panel dataset with 74 countries between
> 1960-1990 and a variable (sulfur dioxid emissions per
> capita, say x). My dataset looks like :
>  
> year             countrycode             x
> 1960                 1                  .
> .                    .                  .
> .                    .                  .
> 1990                 .                  .
> 1960                 74                 .
>  .                   .                  .
>  .                   .                  .
> 1990                 .                  .
>  
> I want to analyse in terms of stationarity all the
> pairs (difference of emissions between country i and
> j): xi-xj (in fact 2701 pairs).  

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