October 2005 - EpiData-list - University of Manitoba Mailing Lists

How to go for new record if you have two parts in EpiData?
by epidata-list＠lists.umanitoba.ca 21 Oct '05

21 Oct '05

Hello! 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. Example: when we enter questionnaire number 1-part 1. Then part 2 opens for the same questionnaire 1. At the end of part 2, instead of moving to questionnaire 2 to start doing data entry, it gives us new record file under part 2 for questionnaire 1. Any advice(s)? Thank you in advance! Best regards! /Ziad -- Centre for Studies of Complementary Medicine Karolinska Institutet Stockholm

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Re: Double Entry Error and @ when exporting to SPSS
by epidata-list＠lists.umanitoba.ca 14 Oct '05

14 Oct '05

I have a problem with results of calculation during double entry. During > double entry, all calculations give same results as first entry except only > for few subjects. Mystery sometimes happen - I am not sure what the problem is here. But we are just now working on different aspects of double entry verification. With the next build of EpiData Entry these errors should be fixed. For the finding of errors it would be very good if users could supply us with the rec+chk files giving problems. If someone as indicated on the list recently have examples creating problems please provide them for us for testing. The known issues to settle are: 1. Sometimes the double entry verification does not move on to the next record (problem with range definition in last field) 2. The calculation error indicated today. Send the files as zipped files (e.g. with few records, say 2-5) to info @ epidata.dk with a clear subject indicating that this is not spam, e.g EpiData test case for finding double entry problem. 2. Exporting to SPSS from old to new version of EpiData. The EpiData file format has not changed apart from the addition of encrypted fields and <yyyy/mm/dd> fields What most likely cause your problems is that the setting of "variable name" as first word or automatic was different on the two computers. Also for export to SPSS you do not need the QES file, but the chk file (definition of value labels and missing data) + the rec file (definition of fields, variable labels and all of the data). regards Jens Lauritsen EpiData Association

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problems with calculations during double entry
by epidata-list＠lists.umanitoba.ca 14 Oct '05

14 Oct '05

Hi, I have a problem with results of calculation during double entry. During double entry, all calculations give same results as first entry except only for few subjects. I checked my formulae with other software and they look OK. This bug is not systematic thats why I have difficulties finding errors. I dont understand why this bug appears only for few subjects. They have not the same characteristics. Who can tell me what king of error it could be, because I dont know anymore what to looking for? Below, calculations : pspef AFTER ENTRY IF (sex = 1) and (height < 162.6) THEN pspdpef=(height * 0.073) - 5.98 ENDIF IF (sex = 1) and (height > 162.5) THEN pspdpef=(height * 0.125) - 13.14 ENDIF IF (sex = 0) and (height < 152.6) THEN pspdpef=(height * 0.079) - 6.79 ENDIF IF (sex = 0) and (height > 152.5) THEN pspdpef=(height * 0.064) - 3.94 ENDIF IF (sex = 1) THEN pssdcpef=(pspef - pspdpef) / (pspdpef * 0.18) ENDIF IF (sex = 0) THEN pssdcpef=(pspef - pspdpef) / (pspdpef * 0.2) ENDIF psppef=(pspef/pspdpef)*100 END END pspdpef NOENTER END pssdcpef NOENTER END psppef NOENTER END Example : sex = 1 , height = 132.8, pspef = 4.90 First entry (good results) pspdpef = 3.71 pssdcpef = 1.78 psppef = 132.1 Double entry pspdpef = 3.71 pssdcpef = -1.15 psppef = 79.2 Thank you in advance for your help. Marie-Pierre Strippoli Marie-Pierre Institut of social and preventive medicine Department of Epidemiology and Biostatistic Paediatric Epidemiology Finkenhubelweg 11 3012 Bern Tel: +41 (0)31 631 35 07 Fax: +41 (0)31 631 35 20 http://www.ispm.unibe.ch

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Re:
by epidata-list＠lists.umanitoba.ca 13 Oct '05

13 Oct '05

"Brigitte Löwe" <b-loewe(a)web.de> schrieb am 13.10.05 13:56:01: > > > We have a problem and maybe you can help us: > We exported data from an old version of epidata(2003; operating system Windows NT servicepack 5) to a new one (3.1; operating system Windows XP Professional). Now there are in the qes.file many, many @ signs and they also appear when we export our data into SPSS (in the variable labels). If we skip the signs, in some cases variable labels in SPSS don´t exist anymore. > What can we do to have a qes.file without @ signs but get all variable labels in SPSS? > > Thank you for your help! ______________________________________________________________ Verschicken Sie romantische, coole und witzige Bilder per SMS! Jetzt bei WEB.DE FreeMail: http://f.web.de/?mc=021193

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RE: EpiData-list Digest, Vol 24, Issue 7
by epidata-list＠lists.umanitoba.ca 13 Oct '05

13 Oct '05

REG MAAK DAN 2-3 -----Original Message----- From: epidata-list-bounces(a)lists.umanitoba.ca [mailto:epidata-list-bounces@lists.umanitoba.ca] On Behalf Of epidata-list-request(a)lists.umanitoba.ca Sent: 12 October 2005 19:01 To: epidata-list(a)lists.umanitoba.ca Subject: EpiData-list Digest, Vol 24, Issue 7 Send EpiData-list mailing list submissions to epidata-list(a)lists.umanitoba.ca To subscribe or unsubscribe via the World Wide Web, visit http://lists.umanitoba.ca/mailman/listinfo/epidata-list or, via email, send a message with subject or body 'help' to epidata-list-request(a)lists.umanitoba.ca You can reach the person managing the list at epidata-list-owner(a)lists.umanitoba.ca When replying, please edit your Subject line so it is more specific than "Re: Contents of EpiData-list digest..."

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Have you used EpiData guideline?
by epidata-list＠lists.umanitoba.ca 13 Oct '05

13 Oct '05

Hello! I sent last year information about an introductory guideline about EpiData. I wonder if anyone has used it? It used to be under EpiData page for a while, and now it is under my university link: http://onkpat.ki.se/1?node=47234 In case you have used it, can you please write me back your feedback about it? I am intending to develop further versions of how to use EpiData, and need feedback to support my case for funds. Best regards! /Ziad Email: Ziad.El-Khatib(a)ki.se -- Ziad El-Khatib Division of International Health Care (IHCAR) Department of Public Health Sciences Karolinska Institutet Norrbacka 2nd Floor SE-171 76 Stockholm, Sweden Tel: +46 (0)8 51770185 Mobile: +46 (0) 73 776 48 59 Fax: +46 (0)8 311590

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Using stattransfer to solve corrupted file
by epidata-list＠lists.umanitoba.ca 12 Oct '05

12 Oct '05

Another form of solving a corrupted file is to use statransfer(a statistical software that enhance file transfer from one format to other eg. from spss file to rec or any other file)with this software you transfer the file back to rec and it will solve your problem. 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 ----------- From: epidata-list-request(a)lists.umanitoba.ca To: epidata-list(a)lists.umanitoba.ca Sent: Wed, 12 Oct 2005 12:00:37 -0500 (CDT) Subject: EpiData-list Digest, Vol 24, Issue 7 > Send EpiData-list mailing list submissions to > epidata-list(a)lists.umanitoba.ca > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.umanitoba.ca/mailman/listinfo/epidata-list > or, via email, send a message with subject or body 'help' to > epidata-list-request(a)lists.umanitoba.ca > > You can reach the person managing the list at > epidata-list-owner(a)lists.umanitoba.ca > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of EpiData-list digest..." ------- End of Original Message -------

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How to: Recapture a corrupted file
by epidata-list＠lists.umanitoba.ca 12 Oct '05

12 Oct '05

In some versions of some computers open files can get "messed" up if power is suddenly lost. Over the years we have strengthened EpiData Entry with several alternative mechanisms to try to avoid problems in this situation (e.g. only one record at a time is in memory. The rest is on the harddisk or floppy.). But despite this the error have been reported at rare instances. Also over the years I have seen files from this situation which was a combination of a rec datafile, a word document and a presentation or drawing. In other words this is part of a operating system problem. How to resolve ? If a corrupted file message is given you can do the following: Manual repair of corrupt files: 1 Make a second copy of your REC and CHK files and do the following (MAKE SURE IT IS A COPY !!!): 2. Verify that YOU HAVE THE ORIGINAL CORRUPTED file in a separate place. 3 Open the extra copy of the REC file in any ascii editor (e.g. notepad.exe). 4 Make sure you are using a fixed font. 5 Look for records with strange or odd formatted records and delete the complete record (Make a note of which one such that you can re-enter it later in EpiData) 6 Delete the parts with a strange format. 7 Pay particular notion to length of lines. All records should show same pattern. 8 Save the file and try to open in EpiData. If you think the above is hopeless - then try to regain other documents or files that were also open at the time, e.g a spreadsheet, a text document or a database from another programme than EpiData. The above is a modifed version of a user supplied explanation earlier. Regards Jens Lauritsen EpiData Association

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New user find Help !
by epidata-list＠lists.umanitoba.ca 11 Oct '05

11 Oct '05

Hi, I´am a new user, I need some help, and my english is a bit poor. Anyone can help me in spanish ? Thanks in advance, Bernardo Ramazzi ( from Uruguay )

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How to: Recover "epidata rec files" or get sufficient help from others.
by epidata-list＠lists.umanitoba.ca 11 Oct '05

11 Oct '05

A good recovery strategy when something goes wrong is: 1. Ask yourself "When was I in control the last time" 2. What did I do since I was in control of the situation. 3. What might I have done wrong since the control. 4. What was I intending to do at the time when I felt no longer in control of the situation. 5. Do I think the "loss of control" is due to a software error, a hardware (e.g. harddisk broken) error or a user error ? 6. How much work should I repeat to continue working from my last backup of all data (I assume you do have a copy somewhere). 7. Can I repeat the steps from the "in control situation" to the "out of control situation" and the same thing happens every time. If you can answer these questions you have a very good clue for the solution or the appropriate information to tell someone who can assist you - e.g. other users on this list. Regards Jens Lauritsen EpiData Association

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