thanks!
--- On Sun, 3/8/09, Martin Weiss <[email protected]> wrote:
> From: Martin Weiss <[email protected]>
> Subject: st: AW: preserving missing values when using total
> To: [email protected]
> Date: Sunday, March 8, 2009, 10:53 AM
>
> <>
>
>
>
> *************
> by year, sort : egen float accounts_total =
> total(accounts), missing
> *************
>
>
>
> HTH
> Martin
>
> -----Ursprüngliche Nachricht-----
> Von: [email protected]
> [mailto:[email protected]]
> Im Auftrag von Srini
> Gesendet: Sonntag, 8. März 2009 01:30
> An: [email protected]
> Betreff: st: preserving missing values when using total
>
> Hi,
>
> After data manipulation, I have a data set with multiple
> observations per
> year. I used total to sum over these observations to get
> collapse the data,
> but realized that the process was replacing missing values
> with zeroes.
>
> year
> accounts accounts_total
> district 1 72
> .
> 0
> district 1 72
> .
> 0
> district 1 72
> .
> 0
> district 1 72
> .
> 0
> district 1 73
> .
> 0
> district 1 73
> .
> 0
> district 1 73
> .
> 0
> district 1 74 10
>
> 34
> district 1 74 20
>
> 34
> district 1 74
> 4
> 34
> district 1 75
> 15
> 32
> district 1 75
> 17
> 32
>
> In my case, accounts data is missing for the first few
> years.. How can I
> ensure that when I take the total by year, accounts_total =
> . for year = 72
> and year = 73? Currently, STATA has accounts_total = 0 for
> those years.
>
> If there isn't a specific command, I can try and use the
> method suggested by
> Nick Cox in 2005 in this thread: Egen functions -
> preserving missing values?
>
> Thanks..
>
> Sinduja
>
>
>
>
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