[EpiData-list] RE: EpiData-list Digest, Vol 124, Issue 2

epidata-list at lists.umanitoba.ca epidata-list at lists.umanitoba.ca
Wed Feb 5 12:07:31 CST 2014


Dear Jens
Thank you
I try and teach epidata to students-will continue with the older version till this is ok with manager as i am not still clear on this
I need to learn more about levels,complaince and subfiles!
Thanks
PS-Epidata has been a boon to many in S India

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From: epidata-list-bounces at lists.umanitoba.ca [epidata-list-bounces at lists.umanitoba.ca] On Behalf Of epidata-list-request at lists.umanitoba.ca [epidata-list-request at lists.umanitoba.ca]
Sent: Wednesday, February 05, 2014 11:30 PM
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Subject: EpiData-list Digest, Vol 124, Issue 2

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Today's Topics:

   1. Re: RE: relational databases (epidata-list at lists.umanitoba.ca)


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Message: 1
Date: Wed, 05 Feb 2014 10:17:24 -0400
From: epidata-list at lists.umanitoba.ca
Subject: Re: [EpiData-list] RE: relational databases
To: epidata-list at lists.umanitoba.ca
Message-ID: <52F247F4.6080306 at gmail.com>
Content-Type: text/plain; charset=UTF-8; format=flowed

Thanks Jens:

This explanation is very helpful for me. I use relational databases in
most of the cases of complex studies. I'm actually needing it right now.
And with this explanation I would plan a project starting with the
EpiData Classic and maybe when relational and extended checks were
implemented in the newer version, I will switch to it importing the
database.

Regards,




El 30/01/14 04:57, epidata-list at lists.umanitoba.ca escribi??:
> Regarding relational databases:
>
> The reality at this point in development is that if you have multiple files in a given project (that is relational databases), then you can do the following:
> EpiData Classic (3.1):
> set up a complete relational system, which secures the levels and compliance with rules for 1:1 or 1:many in subfiles.
>
> One example of this is the well known house-person-visit example or the extended example found in a village survey in Burkina Faso. You will find other examples here:
> http://epidata.dk/examples.php:
>
> EpiData Manager & EntryClient:
> Each file and subfile will be a separate project (EPX), which you define and enter data into without the appropriate control of 1:1 or 1:many relation. The status for a given project can be followed by reports which will document this . It is the "Count by Id" part of the documentation menu. This "Count by ID" allows the user to select as many fields as desired for identification of a given respondent.
>
> During the coming months the "true" relational setup will be developed. Until then one can do as a user reported last week to have several EntryClients open at the same time and then "manually" change from one project file to the other by selecting on the screen the appropriate project. In each of the projects involved you would define the fields identifying a given observation would be defined as a key, e.g. "id + date" of visit or "id + reason + date of visit + time of day".
>
>
> EpiData Analysis
> As well epx and (rec+chk) files can be used for merging relational structures. Although at this point epx files with encryption (password protected) cannot be read into Analysis.
>
> Regarding extended checks
> Pre-release versions of a scripting language similar to the CHK file contents is now only at the level of "in-house" testing, but this will also come in the test versions later. But assumingly only after relational databases can be setup.
>
> I hope this explains the intentions and limitations.
>
> regards
>
> Jens Lauritsen
> EpiData Association
>
>
>
>
> Den 30. jan. 2014, epidata-list at lists.umanitoba.ca skrev:
>
>> Dear Sir
>> IN relation to the old epidata entry software, As most databases are relational could you clarify what is meant by "in
>> situations with relational databases ."
>>
>> Dr Thambu David S
>> Professor and Head
>> Medicine Unit 2
>> Christian Medical College, Vellore
>> 632004, India
> "my quote:"
>
>
>> The download page is now suggesting users to get the epx based Manager
>> and EntryClient and only use the old "Classic Epidata Entry" in
>> situations with relational databases and need for extended calculations
>> during entry.
>>
>>
>
> _______________________________________________
> EpiData-list mailing list
> EpiData-list at lists.umanitoba.ca
> http://lists.umanitoba.ca/mailman/listinfo/epidata-list
>


--
Omar Bautista Gonz??lez
Colaborador en autogesti??n comunitaria desde Rep??blica Dominicana
M??vil: (809)405-7606
Skype: omarbautistag



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