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Re: st: How to re-program -save9- for Stata 13?


From   Nick Cox <njcoxstata@gmail.com>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   Re: st: How to re-program -save9- for Stata 13?
Date   Wed, 16 Oct 2013 01:53:19 +0100

Haven't tried it, but I think not.

0. Most fundamentally, a switch allowing you to use older code cannot
work because there is no way that the older code could understand
version 13 datasets. Understanding version 9 datasets is necessary but
not sufficient.

1. I believe that it would be publicised if it worked.

2. The help for -version- does spell out what -version- does, and it
is very selective.

Nick
njcoxstata@gmail.com


On 16 October 2013 01:37, Jeph Herrin <stata@spandrel.net> wrote:
> Given the first FAQ linked to below, one wonders if -version- applies to
> -saveold-? I don't have a way to test it, but in theory one should be able
> to use
>
> . version 10
> . saveold file
>
> to get a version 9 file, say, from version 13.
>
> J
>
>
> -----Original Message-----
> From: owner-statalist@hsphsun2.harvard.edu
> [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Sergiy Radyakin
> Sent: Tuesday, October 15, 2013 8:47 AM
> To: statalist@hsphsun2.harvard.edu
> Subject: Re: st: How to re-program -save9- for Stata 13?
>
> Hello Marco,
>
> could you please explain a bit, why you see a need for such a program?
> If you have Stata 13, this means you can use -saveold- to save in the
> previous version, then following this FAQ all the way until version 5 if
> necessary:
> http://www.stata.com/support/faqs/data-management/save-for-previous-version/
>
> If you don't have Stata 13, then you use -use13- to load the data into Stata
> 10 or later.
> http://radyakin.org/transfer/use13/use13.htm
>
>
> So I see potential clients as:
> 1) people having Stata 9 and no access to newer versions;
> 2) people having non-Stata software that can read dta format of 9, but not
> newer and the software is not going to be updated, and there is no access to
> Stata 10+
>
> Regarding 1) I was told the # is pretty small, but I don't know what 'small'
> really is. Regarding 2) I am interested in what is out there (regardless
> whether maintained or not). Can we have a headcount of the programs that
> directly read Stata datasets? Let me start:
> ADePT v.5.50.5001.23617 (supports data from Stata 8 to 13) ADePT Map v2
> (supports data from Stata 8-11) R (with package foreign) (supports data from
> Stata 5 to 12) SPSS v.15+ (supports data from Stata X?X to 9?) Stat/Transfer
> (supports data from any version of Stata) etc.
>
> Regarding the implementation it is not at all difficult: the current code of
> use13 and use10 contains all the necessary procedures to implement save9
> which I can do if there is any significant demand.
>
> Best, Sergiy Radyakin
>
>
>
> On Mon, Oct 14, 2013 at 8:54 AM, Marco Ercolani <m.g.ercolani@bham.ac.uk>
> wrote:
>> Dear Statalisters,
>>
>> I am asking for suggestions on how I can re-program -save9- so that it
> will work in Stata 13.
>> In other words, so it will save data in a Stata 9 format from within Stata
> 13.
>> I can think of two possible strategies to achieve this within Stata 13:
>>
>> Strategy 1: Edit the contents of the dataset so they conform to Stata
>> 9 protocols, save the file, then edit the the file header so that it
> appears to have been saved by Stata 9.
>>
>> Strategy 2: Use an existing save facility in Stata 13 that would allow
>> me to impose limits on the data so it respects Stata 9 protocols. Does
> such a save facility exist?
>>
>> Any help on the above two approaches or helpful suggestions for a "third
> way" would be welcome.
>>
>>  Marco Ercolani
>>  Department of Economics
>>  University of Birmingham
>>
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