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Re: st: Arranging variables across rows

From   Nick Cox <>
Subject   Re: st: Arranging variables across rows
Date   Wed, 27 Jun 2012 19:04:21 +0100

Have you actually tried my code?

I cycle over all cross-combinations of the A* and B*, so that should
not be a problem.

Also, your word translation is a mistranslation of the code.


On Wed, Jun 27, 2012 at 6:58 PM, samuel gyetvay <> wrote:
> Nick, your "clumsy" code does not solve the problem, which is that A*
> and B* do not always or necessarily line up. So, if you create a dummy
> variable equal to 1 when A'`i' = B`j', several cases would not be
> counted. Consider the case where only the fourth child received
> treatment:
> (A1)  (A2)  (A3)  (A4)  (B1)  (B2)  (B3)  (B4)
> 101   102   103   104  104     .       .       .
> your code would produce D1, D2, D3, and D4 all equal to 0, despite the
> fourth child having received treatment.
> It appears that your first suggestion, followed by
> bysort family (person) : gen col = _n
> reshape wide person treated , i(family) j(col)
> has worked. I want to perfectly understand each step, and am reading
> through very carefully, referring to definitions of each command used,
> etc. so that I can properly document my work. I will let you know if I
> have any other questions, perhaps in trying to fit the new variable
> "treated" back into the original dataset.

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