Stata The Stata listserver
[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

Re: st: Merge problem

From   "Michael Blasnik" <[email protected]>
To   <[email protected]>
Subject   Re: st: Merge problem
Date   Tue, 29 Apr 2003 13:56:40 -0400

I think I am more confused than before -- the graphic at th end just doesn't
do much for me...

I suggest that you provide a more direct description --

What are the variables in each dataset (you can drop extraneous ones from
the description)?

What specific stata commands are you issuing in what order?

A log file excerpt may be helpful

Michael Blasnik
[email protected]

----- Original Message -----
From: "Julian Fennema" <[email protected]>
To: <[email protected]>
Sent: Tuesday, April 29, 2003 1:12 PM
Subject: RE: st: Merge problem

> Sorry, but it is clear that my attempt to be as precise as possible
> failed. Mea culpa.
> In response to Bill Gould-
> Neither the production nor the investment dataset has any observations
> for b1, nor a variable denoted b1 prior to beginning the merge. This is
> only created through the link with r1/r2 at a later point.
> In response to Michael Blasnik-
> You are very right that the update option could work, and I have used it
> as a work-around. Temporarily ignoring the strange effect of the link
> working for one dataset, whereas not for the other despite the r1/r2
> variables being exactly the same, does work. Essentially, by only
> merging one (investment) of the datasets to get b1, and then merging on
> r1/r2 with the other (production) I "borrow" the link from the former.
> The problem with this is that former contains fewer observations than
> the latter which, if possible, I do not want to lose.
> Ultimately the question remains as to how the links can act so strangely
> as depicted below:
> Investment
> / \
>     Link   =/= Production
> Thanks to both for your time,
> Julian

*   For searches and help try:

© Copyright 1996–2024 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index