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Re: st: appending variables in a dataset


From   Nick Cox <njcoxstata@gmail.com>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   Re: st: appending variables in a dataset
Date   Mon, 24 Feb 2014 12:45:52 +0000

-help stack-

Nick
njcoxstata@gmail.com

On 24 February 2014 12:30, jean-luc morin-chesnel
<jeanluc.morinchesnel@gmail.com> wrote:

> I have an algorithmic question.
>
> I have the following 6 variables A1 A2 A3 B1 B2 B3 in my dataset
> (actually I have more, but this is a minimal example).
>
>
> A1 A2 A3 B1 B2 B3
> -----------------------------------
> a11 a12 a13 b11 b12 b13
> a21 a22 a23 b21 b22 b23
> ...
>
> Where is xij the element on line i and column j
>
> I would like to obtain the following dataset:
>
> BIG1 BIG2 BIG3
> ----------------------
> a11 a12 a13
> a21 a22 a23
> ...
> b11 b12 b13
> b21 b22 b23
> ...
>
> that is, I have "appended" the group of variable B1 B2 B3 to the group
> of variables A1 A2 A3.
>
> Do you know how to do that in Stata 13.1?
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