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Re: st: Re: Unexpected results with merge with update option

From   Nick Cox <>
Subject   Re: st: Re: Unexpected results with merge with update option
Date   Wed, 25 May 2011 07:41:08 +0100

What's going on here is that laurendeason is using Nabble to send to
Statalist. That's fine for laurendeason, but I think it's a good
principle and good practice not to assume that everyone else does. The
reference to "you" is to a posting by Robert Picard which can be found

After more than a year, it would have been helpful to copy the
original posting and not oblige anyone to go hunting for it, even if
the hunting is a mouse-click.


On Wed, May 25, 2011 at 1:51 AM, laurendeason <> wrote:
> Did you ever find out more about this? I have just encountered the same
> problem, but what is really strange is that the problem only occurs when I
> run my code on a version of Stata/MP 11.1 (on the linux cluster at my
> University), while when I run identical code on the version of Stata I have
> on my laptop (Stata/SE 11.1), it behaves differently (it behaves as one
> would expect merge 1:m, update to behave).  I also ran the code you posted
> on my version of Stata/SE 11.1, and indeed the merged records take the value
> of x1 from the using dataset for all observations.
> Does anyone know what's going on here?  Is there a problem with Stata/MP???
> --
> View this message in context:
> Sent from the Statalist mailing list archive at

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