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Re: st: stattransfer


From   Roger Newson <r.newson@imperial.ac.uk>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: stattransfer
Date   Thu, 18 Aug 2011 20:18:03 +0100

Thanks to Svend for this timely warning about the potential hazards of -saveold-.

It is difficult to find these deep technical details in the official Stata documentation, although there seems to be a lot of stuff in -[P] file formats .dta- and the associated online help, at least for those of us who can find the time to read them. On the other hand, both StataCorp and Circle Systems (who make Stat/Transfer) need to make a living, so maybe I should update to Stat/Transfer Version 11 if I want to minimize these issues.

Best wishes

Roger


Roger B Newson BSc MSc DPhil
Lecturer in Medical Statistics
Respiratory Epidemiology and Public Health Group
National Heart and Lung Institute
Imperial College London
Royal Brompton Campus
Room 33, Emmanuel Kaye Building
1B Manresa Road
London SW3 6LR
UNITED KINGDOM
Tel: +44 (0)20 7352 8121 ext 3381
Fax: +44 (0)20 7351 8322
Email: r.newson@imperial.ac.uk
Web page: http://www.imperial.ac.uk/nhli/r.newson/
Departmental Web page:
http://www1.imperial.ac.uk/medicine/about/divisions/nhli/respiration/popgenetics/reph/

Opinions expressed are those of the author, not of the institution.

On 18/08/2011 18:28, Svend Juul wrote:
Peter Lachenbruch wrote:

In trying to convert a Stata 12 data set to excel using
StatTransfer, i got the message that the Stata 12 format
is not supported.

.. and there were a few comments from other users, including
use of the -saveold- command.

**********************************************************

This is a bit confusing because -whatsnew11to12- does not mention
any change of file format from version 11 to 12. I actually
wonder if the file format changed at all (and if yes, why?).

If you use the -saveold- command in Stata 12, it creates a Stata 8/9
dataset, so if you have date-and-time data, Stata 10 or 11
will not format them correctly.

I wrote to tech support about this, also urging StataCorp to avoid
changing the behavior of a command without changing its name
(which actually happened in Stata 10: In Stata 8/9, -saveold-
created a version 7 dataset; in Stata 10/12 it creates a version
8/9 dataset).

The documentation (saveold) states that Stata 11 is "smart enough" to
read Stata 12 datasets, but this is currently not the case.

Svend
_______________________
Svend Juul
+45 2634 7796
sj@soci.au.dk<mailto:sj@soci.au.dk>


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