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Re: st: RES: generating a variable with pre-specified correlations with other two (given) variables


From   fjc <[email protected]>
To   [email protected]
Subject   Re: st: RES: generating a variable with pre-specified correlations with other two (given) variables
Date   Wed, 31 Aug 2011 08:49:05 -0300

Thanks Enrique.

The problem I have with corr2data is that it creates new variables
with a given correlation structure among them, while in my case two of
the variables are given, and I only want to add a new one with
pre-specified correlations with the original two. Am I missing
something?

Francisco.


On Wed, Aug 31, 2011 at 7:53 AM, Henrique Neder <[email protected]> wrote:
> Try corr2data:
>
> matrix C = (1,0,.80,-.80\0,1,0,0\.80,0,1,-.80\-.80,0,-.80,1)
> corr2data hsperc corzer1 corpos1 corneg1, n(4137) corr(C)
>
> Henrique Neder
>
>
> -----Mensagem original-----
> De: [email protected]
> [mailto:[email protected]] Em nome de fjc
> Enviada em: terça-feira, 30 de agosto de 2011 23:00
> Para: [email protected]
> Assunto: st: generating a variable with pre-specified correlations with
> other two (given) variables
>
> Dear Statalisters:
>
> I have a dataset with two variables, x and y.
>
> I would like to generate a new artificial variable, z, with
> pre-specified correlations with x and y (no particular distribution
> required).
>
> Any help would be greatly appreciated.
>
> Best,
>
> Francisco.
>
> P.D. I'm using Stata 11 (on Windows XP)
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