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Re: st: Stata 10 files in Stata 9


From   "Sergiy Radyakin" <serjradyakin@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Stata 10 files in Stata 9
Date   Wed, 13 Aug 2008 19:24:07 -0400

It is possible to convert Stata10 to Stata9 in most cases (if new
formats were not used, if they were then loss is inevitable even with
S\T). Since the file formats are open, it is easy to write such a
converter. What you need is to change the version signature, truncate
formats strings from 49 to 12 bytes and trunsfer the rest of the file.
Should be feasible even in Mata.

Alternatively (if header information is known) one can create a new
dummy dataset with e.g. 1 observation, and then swap the headers. --
Don't like this and never tried.

Regards,
   Sergiy Radyakin



On 8/13/08, Simon Moore <simoncmoore@gmail.com> wrote:
> Lola,
>
> Stat/Transfer is a programme that allows you to convert data files from one
> format to another (http://www.stattransfer.com/).  But this
> costs money.
>
> Simon
>
>
>
> Lola Jackson wrote:
> > Yes I have just been trying to use -saveold- in Stata9 to save a Stata10
> file in that format, but get an error message "no variables defined"
> (r(11)).  From what Svend says below, does this mean that without a computer
> with Stata10 on it there is no way at all to open or convert a Stata10 file
> for use in Stata9?
> >
> > (I know this might seem outdated given that Stata 10.1 has just been
> announced, but it would really help me if there were a way to do this!)
> >
> > best,
> > Lola
> >
> >
> >
> > ----- Original Message ----
> > From: Svend Juul <SJ@SOCI.AU.DK>
> > To: statalist@hsphsun2.harvard.edu
> > Sent: Wednesday, 13 August, 2008 9:08:09 PM
> > Subject: Re: st: Stata 10 files in Stata 9
> > Lola wrote:
> > Is there any way to open a file that was saved in Stata10, on a computer
> that only has Stata9 installed on it?
> > When I try I get error message r(610), that the file is not in Stata
> format (it is saved in Stata10).
> >
> >
> ==============================================================
> >
> > Rafal pointed to:
> >
> >   help saveold
> >
> > but that command does not help Lola directly. She must find
> > someone with a computer with Stata 10 installed, and on that
> > computer:
> >
> >   use dataset_10.dta
> >   saveold dataset_9..dta
> >
> > Hope this helps
> > Svend
> >
> > ---
> >
> > (In Stata 8 and 9 -saveold- saves a dataset in Stata 7 format.
> > I think things would be more transparent if these commands had
> > the names -save7- and -save8-).
> >
> > ________________________________________________________
> > Svend Juul
> > Institut for Folkesundhed, Afdeling for Epidemiologi
> > (Institute of Public Health, Department of Epidemiology)
> > Vennelyst Boulevard 6 DK-8000 Aarhus C,  Denmark Phone, work:   +45 8942
> 6090 Phone, home:   +45 8693 7796 Fax:           +45 8613 1580 E-mail:
>  sj@soci.au.dk
> _________________________________________________________
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