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Re: st: recoding missing value on variable with nonmissing value on variable within groups
From
Nick Cox <[email protected]>
To
[email protected]
Subject
Re: st: recoding missing value on variable with nonmissing value on variable within groups
Date
Wed, 20 Jun 2012 14:32:54 +0100
You have given me another reason to add to my quirky dislike of -recode-.
It looks as if you can get what you want by
egen wanted = max(jury_id), by(yearmonth)
but you need to check that there is at most one non-missing value for
each group.
That could be done by
gen touse = !missing(jury_id)
bysort touse yearmonth (jury_id) : gen same = jury_id[1] == jury_id[_N]
assert same
Nick
On Wed, Jun 20, 2012 at 11:45 AM, Erik Aadland <[email protected]> wrote:
> I am trying to recode the missing values on "jury_id" in example below with the nonmissing values for jury_id by yearmonth.
> Unfortunately, the "by" command is not allowed with the recode command.
>
> yearmonth jury_id WANTED RESULT
> 1 1 1
> 1 1 1
> 1 1 1
> 1 . 1
> 2 2 2
> 2 2 2
> 2 2 2
> 2 2 2
> 3 2 2
> 3 . 2
> 3 . 2
> 4 3 3
> 4 3 3
>
>
> Any input on this problem would be very much appreciated.
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