st: Re: distance data missing values

["Martin Weiss" <martin.weiss1@gmx.de>]

This question is quite close to: 
http://www.stata.com/statalist/archive/2008-10/msg00578.html
Might want to try your luck there...

HTH
Martin
_______________________
----- Original Message ----- 
From: "Ermal Hitaj" <ermalhitaj@yahoo.com>
To: <statalist@hsphsun2.harvard.edu>
Sent: Thursday, October 16, 2008 10:28 PM
Subject: st: distance data missing values


> Hi,
>
> I wonder whether somebody could help with the following:
> I have trade distance data in a long form. I have missing values as 
> follows.
>
> Exporter Importer Distance
> A          B       1000km
> B          A          .
>
> I need to substitute the missing values with the distance value from the 
> case where country A is the exporter and B is the importer.
> Obviosly, there's a lot of countries (and a lot of products).
>
> Thanks,
> E.
>
>
>
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