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Re: st: Keeping an entire cell based on an observation taking a particular value


From   Nick Cox <njcoxstata@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Keeping an entire cell based on an observation taking a particular value
Date   Mon, 19 Mar 2012 20:50:17 +0000

I understand this as follows. You have panel data defined by variables
-id- and -time- and a bundle of other variables -X*-.

You want to keep any panels such that any value of -Xk- within a panel is 1.

egen OK = total(Xk == 1), by(id)
edit if OK

If and only if that is what you want

keep if OK

Nick

On Mon, Mar 19, 2012 at 8:33 PM, Dooruj Rambaccussing
<dooruj.rambaccussing@gmail.com> wrote:

> I am a beginner to stata. I was wondering if someone can help me with
> the following issue:
>
> I got a dataset with an id and time, and certain observations say X1,
> X2 ...... Xk. My variable  Xk has got missing values. I would like to
> keep an id when a certain condition holds, suppose Xk(t) ==1, and I
> would also like to keep the missing obs. Can anyone help me with this
> ?

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