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Re: st: tempfile & scope


From   "Danielle H. Ferry" <dferry@nber.org>
To   StataList <statalist@hsphsun2.harvard.edu>
Subject   Re: st: tempfile & scope
Date   Thu, 25 Sep 2003 14:10:52 -0400

On 9/25/03 1:57 PM, "Nick Cox" <n.j.cox@durham.ac.uk> wrote:

> Danielle H. Ferry
> 
>> It has
>> become glaringly obvious that I don't understand the
>> purpose of -tempname-
>> here. Can someone please explain?
> 
> Well, in fact, I guess it's dispensable.
> 
> You need a postname; it's just a convention
> to use a temporary name, as that way Stata
> _guarantees_ that it will not get confused
> with any other file operations it may be
> doing concurrently.
> 
> Without a tempname you lose that guarantee,
> but problems are perhaps unlikely in
> most situations. You would have to work
> quite hard at it e.g. using the same
> postname for different operations in different
> programs in the same session could produce
> an interesting mess.
> 
> Nick 
> n.j.cox@durham.ac.uk

I think I see. I should have been more clear, as I was asking more about the
purpose of the postname (regardless of whether you use a temporary name),
but I think I understand. The postname just specifies what will be posted
and ensures that what _is_ posted fits this profile.

Thank you, Nick & Nick for the thoughtful replies.

-- 
Danielle H. Ferry
National Bureau of Economic Research
365 Fifth Avenue, 5th Floor
New York, NY 10016
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