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Re: st: Merging question for a panel dataset

From   Anders Alexandersson <>
Subject   Re: st: Merging question for a panel dataset
Date   Mon, 13 Sep 2010 17:21:37 -0400

Jonathan, why is -merge- or -append- not applicable to your situation?

Can you provide some example data that shows the problem?
What is your key variable in addition to pid? That is, what is your
within-id identifier (subobservation), e.g., year or wave?
Are there few or many variables in each of the two datasets (asked to
figure out whether merge or append might be better)?
You can look into -joinby- and -cross- if you instead are trying to
create pairwise combinations.

Anders Alexandersson

On Mon, Sep 13, 2010 at 4:58 PM, Jonathan Eggleston
<> wrote:
> Im trying to combine varies waves of this one dataset (The British Household
> Panel Survey) into one panel dataset. Each wave is one year, and the dataset
> and variables for a particular year start with a specific letter. So for
> example I’m trying to combine the datasets bindresp and cindresp for the
> variables bhowlng and chowlng (these are the same variable, just for
> different years). The person id variable is pid, and there are some
> individuals that are in some waves but not others. Can anyone suggest some
> stata code that will combine the datasets? I’m familiar with the merge and
> append commands, but examples I find aren’t quite applicable to my
> situation. Thanks!

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