[EpiData-list] Error in exporting .epx file to .dta

EpiData development and support epidata-list at lists.umanitoba.ca
Mon Oct 23 13:58:34 CDT 2017

Question :
Stata uses one or more large integers as missing value and labels these as .a .b etc.

Should we export missing values as the original value, e.g. 999 and loosing stata missing definition or use .a etc? 

Jens Lauritsen

Den 23. oktober 2017 16.42.57 CEST, EpiData development and support <epidata-list at lists.umanitoba.ca> skrev:
>Dear team members,
>I had entered data in an .epx file created using EpiData Manager
>with jumps set for certain variables using the last defined and second
>defined missing values. A unique identifier was also created for each
>record by combining two integer fields.
>On importing the data to stata for analysis, the following issues have
>1. The unique id field remains empty in the stata file
>2. Wherever, missing values were indicated in the .epx file, they
>appear as
>large random numbers in the stata file and not as the actual value that
>entered. For example, age entered as 999 (missing) in the .epx file
>up as "32740" in the stata file. This happens only when the "missing"
>is ticked while assigning value labels for categorical or continuous
>This issue has been noted in the previous versions of epidata manager
>well as while exporting to newer versions of stata and SPSS.
>I have attached the sample .epx file and the .dta file for your
>Thanks and Regards
>Dr. Divya Nair

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