st: Re: Merging by intervals or subgroups

["Michael Blasnik" <michael.blasnik@verizon.net>]

...

You might want to check out -nearmrg- available from SSC which may help in your 
first problem.  The second problem is more difficult, but if you can create a 
binned version of each of those variables it would be much easier (but would, of 
course, miss matches that are near each other but straddle bin boundaries).

Michael Blasnik


----- Original Message ----- 
From: "Malcolm Wardlaw {msbbe073}" <Malcolm.Wardlaw@phd.mccombs.utexas.edu>
To: <statalist@hsphsun2.harvard.edu>
Sent: Saturday, November 10, 2007 5:39 PM
Subject: st: Merging by intervals or subgroups



> I'm trying to figure out how to match/merge data in a one-to-one one-to-many 
> context using a range.
>
> Specifically, I want to take an observation name(1) and date(2) and match it 
> to another dataset which has a name(1) and a date range from beginning(3) to 
> end(4) as well as other information.
>
> In a related problem I need to merge a company(1) and an accounting 
> variable(2) to all remaining companies with accounting variables in a certain 
> range, lets say +/- 10%.
>
> Is there a preferred way to do this in Stata.  I am building routines for this 
> but they use a bunch of local variables and loops and I don't think it's 
> getting the right answers.  Any help would me much appreciated.
>
> Malcolm
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