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Re: st: create local with specific value of a variable


From   Ryan Stevens <stevrl7@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: create local with specific value of a variable
Date   Wed, 20 Feb 2013 10:53:31 -0500

This may be too much looping but if it were me, I'd probably do
something as follows:

local N _N
forval i=1/`N'{
	if(`=x[`i']' == 50){
		local y`i' `=y[`i']'
	}
}

On Wed, Feb 20, 2013 at 10:43 AM, Pablo Bonilla
<pablo.bonilla1234@gmail.com> wrote:
> Dear Statalist users:
>
> Sometimes I need to save in a local a specific value of a variable and
> I cannot do it because creating a local does not support “if” neither
> “in” conditions. For instances, let’s suppose that I have two
> variables: “x” and “y”. Variable “x” goes from 1 to 100 and “y” is a
> random vector. Now, how can I save in a local the value of “y” when
> “x” is, for example, 50?  In other words, I would like to do something
> like this:
>
> local y50 = y if x == 50
>
> I know that is not possible and it is actually a “heresy” in Stata
> language but it might give you an idea of what I need.
>
> Thank you so much for your help and any idea is more that welcome.
>
> Best
>
>
> ----
>
> Pablo Bonilla
>
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