[EpiData-list] Epidata Analysis b122 available for testing

epidata-list at lists.umanitoba.ca epidata-list at lists.umanitoba.ca
Sun Sep 23 14:45:09 CDT 2007

These weeks several problems and clarifications have been made on the 
"road" to release finally EpiData Analysis as v2.0

Some aspects are still insufficiently final, but the level of changes 
are going into "corner" details from my point of view.

As of build 122 some aspects have been fixed:
- EpiDemiological tables (odds ratios, rr and attributable risk) will 
use highest value of case and exposure variables as default.
- A new table dialog has been a success in my personal teaching. Quite 
clearly beginners adapt much faster when having proper (intuitive) dialogs.
- Sorting of frequency tables by numbers
- More graph types can now be used with a "group variable", e.g.: box 
age /by=sex
- Many more subtle details have been fixed. Many of these are invisible 
to the end-user, but clarification makes the whole programme more 
stable. This will also allow shorter development time for future new 
commands and additions.

Some issues are still creating problems, such as:
- internal errors after kruskal-wallis tests.
- parts of relate system not working for some files
- creating more intuitive dialogs for remaining parts of the system
- removing reported bugs (see mantis system).

Some users might find it odd that new problems arise, but this is due to 
the rewriting of core parts. And consequential changes in other parts of 
the software take some time to find, if they are not pinpointed by the 
error tracking system. This system is a collection of pgm files doing 
all verifying results and function in all parts of the programme. 
Usually when a new error is reported it is due to not being tested for 
in the error tracking system. The system is now based on 41 pgm files 
with around 1150 different conditions being tested and verified. 

Version 2 will not be released before all of the consequences of the 
rewriting of core parts has taken place. But as could be stated on the 
www.epidata.dk/testing.php page : "Many of the functions are running and 
functioning very well, so after each user has verified the function of 
what he/she uses there is no problem in using the test versions." E.g. 
the table module has no known errors just now.

Kind regards

Jens Lauritsen
EpiData Association

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