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Re: st: RE: combine two datasets
From
wanhaiyou <[email protected]>
To
[email protected]
Subject
Re: st: RE: combine two datasets
Date
Thu, 19 Dec 2013 10:38:30 +0800 (GMT+08:00)
Thanks Joe,
You are right. I think append does require that the datasets
have the same variables at first. Actually,it is not. Your codes
are prefectly.
Bests,
wanhaiyou
Hunan University
> -----原始邮件-----
> 发件人: "Joe Canner" <[email protected]>
> 发送时间: 2013-12-19 09:46:57 (星期四)
> 收件人: "[email protected]" <[email protected]>
> 抄送:
> 主题: st: RE: combine two datasets
>
> Wanhaiyou,
>
> Try:
>
> use A, clear
> append using B
> sort id year
>
> This is a pretty basic Stata operation, so you should probably spend some time familiarizing yourself with the Stata -help- command and other online resources that provide Stata tutorials.
>
> Regards,
> Joe Canner
> Johns Hopkins University School of Medicine
> ________________________________________
> From: [email protected] [[email protected]] on behalf of 游万海 [[email protected]]
> Sent: Wednesday, December 18, 2013 7:53 PM
> To: [email protected]
> Subject: st: combine two datasets
>
> Dear all,
>
> I have two dataset A and B,
> A:
> id year var1 var2
> 1 2001 1 2
> 1 2002 3 4
> 1 2003 5 6
> 2 2001 1 2
> 2 2002 3 4
> 2 2003 5 6
> 3 2001 1 2
> 3 2002 3 4
> 3 2003 5 6
>
>
> B:
> id year var1 var2
> 1 2004 1 2
> 2 2004 3 4
> 3 2004 5 6
>
> And I want to obtain the dataset C
> id year var1 var2
> 1 2001 1 2
> 1 2002 3 4
> 1 2003 5 6
> 1 2004 1 2
> 2 2001 1 2
> 2 2002 3 4
> 2 2003 5 6
> 2 2004 3 4
> 3 2001 1 2
> 3 2002 3 4
> 3 2003 5 6
> 3 2004 5 6
>
> Thanks very much
>
> Bests,
> wanhaiyou
> Hunan University
>
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