Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: st: To: [email protected]
From
Muyang Zhang <[email protected]>
To
[email protected]
Subject
Re: st: To: [email protected]
Date
Wed, 22 Feb 2012 12:04:16 +0800
Dear Sara,
I suggest that you should use -duplicates- to check whether there are
repeated observations with the same id in the using.
Best,
Muyang
On Wed, Feb 22, 2012 at 11:48 AM, Sara Anderson
<[email protected]> wrote:
> I am attempting to merge to imputed datasets each with the same number of
> imputations and participants. When I attempt the merge, I get this error:
> variable id does not uniquely identify observations in the using data
>
> Using these commands:
> use impute_diss, clear
> mi merge 1:1 id using pscore_only_mi
>
> I have tried re-creating the files, confirming number of id's etc. The only
> reason I can think for the error is that in one imputation, all
> participants have values of the variables for all imputations. For the
> other (impute_diss), not all participants have an id because some
> participants had complete data so no imputations were not necessary. But I
> somehow thought that the mi merge command would figure that out.
>
> Is the only way out to export the imputed files, recombine not as mi, then
> to merge by the id and _mi_m? This seems cumbersome, but I'm about to try
> it out.
>
> Thanks-
> Sara
> *
> * For searches and help try:
> * http://www.stata.com/help.cgi?search
> * http://www.stata.com/support/statalist/faq
> * http://www.ats.ucla.edu/stat/stata/
--
Muyang Zhang
Ph. D. Candidate
China Center for Economic Research
Peking University
Beijing, 100871
China.
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/