[DDI-users] DDI software that recognizes extended Stata/SAS missing values?

[Wendy Thomas]

Hi Bob,

In DDI 3.2 there is a specific differentiation between valid and invalid
(missing values) so that they are declared separately. In
PhysicalDataProduct the PhysicalStructure/DefaultMissingData can be used
for this as this is a description of a specific file type (like SAS, etc.).
Larry Hoyle or Achim Wackerow can probably provide more details as they
were looking at the new structure for Missing Values in this context while
it was being developed.

Wendy


On Fri, Jun 20, 2014 at 10:26 AM, Bob McConnaughey <bobmcconn at gmail.com>
wrote:

> Dear Folks:
>     Do any of the DDI documentation/codebook generating packages handle
> extended Stata/SAS missing values? .a-.z ; "."?  Our analysis datasets (as
> opposed to the original questionnaires) invariably use multiple sets of
> special missing codes, and converting every thing into faux numeric
> missings (-1---9) for instance kind of defeats the purpose.
> any way forwards will be most appreciated.
> thanks
> bob
>
> Bob McConnaughey, PhD.
> Westat/NIEHS epidemiology branch contractor
>  919-941-8300 (w)
>  919-542-5653 (h)
>
> "She is at the brink of never being hurt again
>  but pauses to say, All of us.  Every blade of grass."
>  from *Kuan Yin*, Laura Fargas
>
>
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>


-- 
Wendy L. Thomas                              Phone: +1 612.624.4389
Data Access Core Director                 Fax:   +1 612.626.8375
Minnesota Population Center             Email: wlt at umn.edu
University of Minnesota
50 Willey Hall
225 19th Avenue South
Minneapolis, MN 55455
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