greetings. i just used the variables command in Analysis and the output results were a little surprising.
the Value Lable field display was as follows:
1 = a
10 = 25
11 = 26.
19 = 29
2 = b
20 = 30
The Freq or tables command had the same issue at one time. we had this discussion about why before.
1
2
3
4
etc. is a better output in the end.
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From: epidata-list(a)lists.umanitoba.ca [mailto:epidata-list@lists.umanitoba.ca]
Sent: Wed 10/26/2005 9:21 AM
To: epidata-list(a)lists.umanitoba.ca
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Subject: [EpiData-list] Analysis read time and "too many catagories"
greetings. i have atached a .rec file with 165,905 records, each 44 bytes.
(1) it takes EpiAnalysis 10 seconds to open compared to instant availability in Epi6. why so slow?
(2) using EpiAnalysis FREQ DATE resulted in error... "Too Many Catagories", no output. why???
(3) using Epi6 time for FREQ DATE was 1.9 seconds.
slowness we can perhaps tolerate but no output on FREQ may be an issue. Or, it could be ther user.
thank you and stay safe, kelly
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greetings. i have atached a .rec file with 165,905 records, each 44 bytes.
(1) it takes EpiAnalysis 10 seconds to open compared to instant availability in Epi6. why so slow?
(2) using EpiAnalysis FREQ DATE resulted in error... "Too Many Catagories", no output. why???
(3) using Epi6 time for FREQ DATE was 1.9 seconds.
slowness we can perhaps tolerate but no output on FREQ may be an issue. Or, it could be ther user.
thank you and stay safe, kelly
-----Original Message-----
From: epidata-list-bounces(a)lists.umanitoba.ca on behalf of epidata-list-request(a)lists.umanitoba.ca
Sent: Tue 10/25/2005 1:01 PM
To: epidata-list(a)lists.umanitoba.ca
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Subject: EpiData-list Digest, Vol 24, Issue 13
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Hello
1.About having a central server, please refer to the website and read the
limitation of Epidata.
2.Well you can use the qes for data management or also use the option of
preparing one data screen(rec file)and use the option of copy structure
which is located at the tools menu.The advantage is that;
1. It is fast
2. There is no need to prepare another check.
With these option, data entry staff can entry data for you and you have to
merge them to have a collective data either at epidata or using spss.
Using text fields.It is possible to enter open-ended questions and
narrative with Epidata but it limitatiton is that it takes up to 80
characters whilst that of spss DE takes about 256 characters
SEDZRO KOJO MENSAH
P.O.Box AS 387
Ashaiman -Tema
Ghana
House : +233-22-300789
MOBILE : +233-244-458788
Homepage http://rastafarionline.com/rasbesa
Open WebMail Project (http://openwebmail.org)
---------- Original Message -----------
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Sent: Tue, 25 Oct 2005 12:01:20 -0500 (CDT)
Subject: EpiData-list Digest, Vol 24, Issue 13
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Dear friends.
Using COMMENT LEGAL function in order to select strings and get their
respective codes from a separate REC file, I wanted to get CID10 codes and
their respective Descriptions during data entry.
In my parent CHK file you can see:
DISEASE
COMMENT LEGAL CID10.REC SHOW
TYPE COMMENT CIDCODE
END
CIDCODE
NOENTER
END
In my reference CHK file you'd read:
DISEASE
KEY 1
END
CID10
KEY UNIQUE 2
END
It's working fine, except that, in the pop-up window of reference the
description of DISEASE is shown length limited to 30 characters, despite of
my reference REC file showing 70.
Any clue?
Thanks in advance.
MARCO MOURA
==================================
Dr. MARCO Antonio MOURA Reis, MD, PhD
Discipline of Medical Informatics
Department of Medicine
University of Region of Joinville - UNIVILLE
Joinville (SC) - BRAZIL
E-mail: mmoura(a)infomedica.com.br
==================================
Well, Megan.
As I know, simultaneous entries are not possible.
I have been using EpiData in clinical research and constantly dealing with
multiple users input.
Right now I am creating a set of files to be used for a multicenter study
about Neonatal Care Units (up to 50).
What I do is to distribute sets of REC/CHK files (named specifically after
each center) and recover the filled REC files through the use of a Web
based free, but access-limited Group (like Yahoo Groups), what turns to be
a additional backup system for my precious files.
Having different files make it possible to first check the adequacy of each
file before combining them.
Combine files is quite fast and easy.
Hope it helps.
MARCO MOURA
==================================
Dr. MARCO Antonio MOURA Reis, MD, PhD
Discipline of Medical Informatics
Department of Medicine
University of Region of Joinville - UNIVILLE
Joinville (SC) - BRAZIL
E-mail: mmoura(a)infomedica.com.br
==================================
Dear Megan:
I can tell you a bit about our experience with multiple users in different countries we have had.
We use one original set:
original.qes
original.rec
original.chk
Once this is definitively agreed upon, we use Copy structure (including the check file) to get:
a.rec
a.chk
b.rec
b.chk
..
as many as we need and give one pair to each user (actually in duplicate for double entry). They enter the data at their leisure and then email the validated *.rec files. Because these files are so small, this can be done from even the slowest email connection (which matters to us as we work in some of the poorest countries).
In EpiData Analysis, we simply do:
close
erase "abcd.rec"
read "a.rec"
append "b.rec"
append "c.rec"
append "d.rec"
savedata "abcd.rec"
close
read "abcd.rec"
People in the periphery simply continue to enter data into a.rec or b.rec and send so and so often the updated file, and the coordinator runs the append.pgm again. We did this with 30 locations in Zimbabwe collaborating with 31 locations in Mongolia, with a similar set-up for Moldowa collaborating with Uganda, and we never had a need for a central server. Email did just fine. A file with 58,000 records and and 9 fields took just 2 MB.
I hope this helps a bit with that part of your question.
Regards,
Hans Rieder
Hello,
I am a political scientists but used to work with public health people at
The Carter Center. I am comparing EpiData, SPSS Data Entry Builder, and File
Maker Pro as options for entering media incident reports of election
violence. I am interested in "epidemiology of political violence" and
eventually plan to map incidents. I am leaning toward Epi because it is
freeware and many other great qualities, but a couple of questions remain:
(1) I would like to have people entering data at the same time from multiple
locations. Is it possible to have a remote and immediate data deposit on a
central server via the web using EpiData?
If not, how have people handled data management when field staff enter data?
Do they just use the same .qes and then send the .rec files periodically,
which are appended. Are there any problems with this method? I was thinking
of setting up a web site where people could upload their files, then I would
combine them.
(2) I am a bit confused about text fields. Is it possible to enter
open-ended questions and narratives (paragraph length)? This is what is
attractive to me about SPSS DEB. They have remote entry as well as long
text fields.
If anyone has considered these issues I would welcome assistance.
Best wishes,
Megan Reif
Megan E. Reif
Department of Political Science
University of Michigan
5700 Haven Hall
505 S. State Street
Ann Arbor, MI 48109-1045
Mobile: 734.730.6024
Home: 734.763.6916
Fax: 734.764.3522
reifm(a)umich.edu
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Ziad asked: How to go for new record if you have two parts in EpiData?
> I have database made of two parts. When we finish data entry in "part 2",
> instead of moving to new record file, and we expect to see part 1, we get
> new record file in part 2.
>
I assume the situation is this:
a. enter data into file A
b. at latest field in file A perform a relate to file B based on unique ID
c. continue with more data in B
d. at last field in file B you wish to continue with next record in file A.
IF you specify in file A last field:
after entry
relate id fileB
end
Then after entering last field in file B you will have a new record in
file B, but if you instead:
after entry
relate id fileB 1
end
then only one record will be entered in file B and you will return to file A
Example: qes files:
file a:
id <IDNUM>
v1 first field #
v2 date <dd/mm/yyyy>
v3 relate #
file b:
id #####
v1 first field #
v2 date <dd/mm/yyyy>
v3 relate #
Chk files:
file a:
id
KEY UNIQUE 1
END
v3
AFTER ENTRY
RELATE id fileb 1
END
END
file b:
id
KEY UNIQUE 1
END
Kind regards
Jens Lauritsen
EpiData Association
Hello All!
Describing your problem, mighty be easy to you but to the one who is suppose
to fix it up difficult.It will be appropriate if you add the data to the
problem description for one to fix it up and send it you. I suggest you
include the data screen for any of us to figured out the solution.
Regards
SEDZRO KOJO MENSAH
P.O.Box AS 387
Ashaiman -Tema
Ghana
House : +233-22-300789
MOBILE : +233-244-458788
Homepage http://rastafarionline.com/rasbesa
Open WebMail Project (http://openwebmail.org)
---------- Original Message -----------
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To: epidata-list(a)lists.umanitoba.ca
Sent: Fri, 21 Oct 2005 12:01:05 -0500 (CDT)
Subject: EpiData-list Digest, Vol 24, Issue 11
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>
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