Re: st: one last question

["Rajiv Mallick" <rmallick@hotmail.com>]

stay live!!

merge creats _merge variable.  you can drop variables depending upon the 
purpose of the merge by making one of the following statements.

drop if _merge==1
drop if _merge==2
drop if _merge==3


          _merge==1    obs. from master data
          _merge==2    obs. from using data
          _merge==3    obs. from both master and using data
or see

http://www.stata.com/help.cgi?merge


> From: "Rodrigo Brice�o" <rbriceno@sanigest.com>
> Reply-To: statalist@hsphsun2.harvard.edu
> To: "Statalist \(E-mail\)" <statalist@hsphsun2.harvard.edu>
> Subject: st: one last question
> Date: Thu, 16 Jan 2003 14:41:51 -0600
>
> Before dying!
>
> Stata Listers: if one merges two databases, but one database has registers
> or observations that are not in the other, this result in some missings for
> observations that already has information. Could I avoid this?
>
> Rodrigo
>
>
>
> *
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