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Re: st: Mata compatibility problem


From   Sergiy Radyakin <serjradyakin@gmail.com>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   Re: st: Mata compatibility problem
Date   Thu, 20 Feb 2014 13:31:21 -0500

Dear Bill, thank you very much for the explanation. I have just sent
the technical details missing in above to Stata's tech-support. Best,
Sergiy

On Thu, Feb 20, 2014 at 10:56 AM, William Gould, StataCorp LP
<wgould@stata.com> wrote:
> Sergiy Radyakin <serjradyakin@gmail.com> reports having an old Mata
> library file that he created, lgeochart.mlib, or perhaps it is a recent
> library file created by an old version of Stata -- I'm unclear on this
> -- but in any case, when using this file with modern Stata, he gets the
> error message
>
>     . mata mata describe using lgeochart
>     .\lgeochart.mlib from a older version of Stata
>     r(610);
>
> This is an example of error message that was never supposed to be seen
> outside of of StataCorp's walls because the eror can only occur when
> Stata sees a .mlib file created by a version of Stata that predates
> Stata being released to the public!  That is, the .mlib file -- written
> in what we call mlib-format 1 -- was used only when Mata existed only
> inside StataCorp.
>
> When Stata 9 officially shipped, Stata used mlib-format 2, although it
> could probably still read mlib-format 1.
>
> I can't be sure how Sergiy created a mlib-format 1 file, but I suspect
> that we provided Sergiy with a pre-release version of Stata 9 that was
> still using the development format.
>
> -- Bill
> wgould@stata.com
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