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Re: st: Unexpected error from -merge-
From
Friedrich Huebler <[email protected]>
To
[email protected]
Subject
Re: st: Unexpected error from -merge-
Date
Mon, 23 Sep 2013 12:33:59 -0400
Try this:
. duplicates report actpsid
Friedrich
On Mon, Sep 23, 2013 at 11:20 AM, Jacob-Jan Koopmans
<[email protected]> wrote:
> Dear list members,
>
> I am receiving an unexpected error when merging data.
> I am using stata 12.
>
> I am trying to merge data in the following way:
> "sort actpsid
> merge 1:m actpsid using "cbhiind" ".
>
> This, however, results in the following error:
> "variable actpsid(my individual identifier) does not uniquely identify
> observations in the master data
> r(459)."
> This would normally suggest(as far as I know), there are duplicates of
> actpsid in the master data. However, when checking for duplicates by
> using: duplicates report. I receive the following nice report:
>
> "Duplicates in terms of all variables
> --------------------------------------------------------
> copies | observations surplus
> ----------+--------------------------------------------
> 1 | 8772 0
> --------------------------------------------------------"
>
> Therefore, I suppose the error is not resulting from duplicates in my
> identifier variable.
>
> I would thus like to ask whether there are other reasons why the above
> mentioned error appears.
>
> Kind regards,
> Jacob-Jan Koopmans
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