- EpiData-list - University of Manitoba Mailing Lists

Vedr.: [EpiData-list] (no subject) (Kontakt til Jens Lauritsen Uge 8 )
by epidata-list＠lists.umanitoba.ca 31 May '05

31 May '05

Jens Lauritsen, Overlæge afd.O-Ulykkes Analyse Gruppen, Odense Universitetshosptal Tæffes igen 1.juni. Kontakt evt. sekretariatet på (+45) 65412283 Ved hastesager kan der indtales besked på (+45) 21732293 Will be back June 1st.

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RE: Date variable
by epidata-list＠lists.umanitoba.ca 27 May '05

27 May '05

Hi! The 3 variables (Day, Month and Year) have to be string (or at least, it works that way!) Assuming following variable names : Date: DATE, Day: DAY, Month: MONTH, Year: YEAR) In the After entry block of the date variable, place the lines below: DAY = day(DATE) MONTH = month(DATE) YEAR = year(DATE) Day, month and year are functions which automatically extract the corresponding values. Note: besste to create string variables, so days / months < 10 will stay the way thay have been entered, (03 will wtay 03 and not 3). Best regards Gilles -----Message d'origine----- De : epidata-list(a)lists.umanitoba.ca [mailto:epidata-list@lists.umanitoba.ca] Envoyé : vendredi 20 mai 2005 05:05 À : epidata-list(a)lists.umanitoba.ca Objet : [EpiData-list] Date variable Hi all! I am trying to create three variables: Day, Month and Year that would read automatically their values from Date variable (<dd/mm/yyyy>) but unfortunately can't get well how to do it, Any tips please? Thank You in advance! Best regards! /Ziad -- Medecins Sans Frontieres - Holland NorthSudan project Upper Nile State

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RE: [EpiData-list] Re: selecting on string variables
by epidata-list＠lists.umanitoba.ca 25 May '05

25 May '05

Why is this necessary? I see "LION", upper case and delineated with " ". Thanks, Kelly -----Original Message----- From: epidata-list(a)lists.umanitoba.ca [mailto:epidata-list@lists.umanitoba.ca] Sent: Sunday, May 01, 2005 2:16 PM To: epidata-list(a)lists.umanitoba.ca Subject: [EpiData-list] Re: selecting on string variables > 1. How to select "string variables" in Epidata Analysis ? > select outcome="death" An example should clarify: Try this: generate 3 // make 3 artificial records gen integer id = recnumber // create id variable define animal _________ // make a string variable * add value to the variable: if recnumber = 3 then animal = "monkey" if recnumber = 1 then animal = lower("LION") if recnumber = 2 then animal = "LION" . list ID ANIMAL 1 lion 2 LION 3 MONKEY * so we see that we have three values for the variable animal. * and we have two variables: . var Name Type Length Decimals ID Integer 12 0 ANIMAL String 9 0 %s9 * now we try various selects: select if animal = "LION" count No records available select // to select if upper(animal) = "LION" count No records available select select if upper(trim(animal)) = "LION" count Count : 2 The essense is therefore that to do a select on a string variable, you have to use as well sometimes the function upper() and the function trim() to get a proper selection. regards Jens Lauritsen Initiator of EpiData Coordinator EpiData Association

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Creating three variables from one
by epidata-list＠lists.umanitoba.ca 21 May '05

21 May '05

Dear Ziad: I am not sure I understood you correctly, but if yes, this is what you would do: QES file: testdate <dd/mm/yyyy> dd ## mm ## yyyy #### sex <A> and CHK file: testdate MUSTENTER after entry dd=day(testdate) mm=month(testdate) yyyy=year(testdate) end end DD NOENTER END MM noenter END YYYY NOENTER END SEX MUSTENTER END Regards, Hans -- Hans L Rieder, MD, MPH Jetzikofenstr. 12 3038 Kirchlindach Switzerland Tel: +41 31 829 4577 Mob: +41 79 429 9945 Web: http://www.tbrieder.org

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Date variable
by epidata-list＠lists.umanitoba.ca 19 May '05

19 May '05

Hi all! I am trying to create three variables: Day, Month and Year that would read automatically their values from Date variable (<dd/mm/yyyy>) but unfortunately can't get well how to do it, Any tips please? Thank You in advance! Best regards! /Ziad -- Medecins Sans Frontieres - Holland NorthSudan project Upper Nile State

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Outsourcing of your data processing/conversion requirements
by epidata-list＠lists.umanitoba.ca 09 May '05

09 May '05

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Revising a questionnaire
by epidata-list＠lists.umanitoba.ca 02 May '05

02 May '05

Dear Colleagues, As I was using EpiData, I was impressed because it is simple to understand and even train someone on how to use it. However, I was challenged on how to revise a questionnanire and effect the revision into the record file. If you know how to do it, just direct me. I will be happy for your quick response. Regards, ___________________________________________ Lwanga B. Charles Department of Population Studies, Institute of Statistics and Applied Econ., Makerere University, Box 7062 Kampala, Tel: 256-77-575745 Alternative email: chlwanga(a)hotmail.com

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Re: selecting on string variables
by epidata-list＠lists.umanitoba.ca 01 May '05

01 May '05

> 1. How to select "string variables" in Epidata Analysis ? > select outcome="death" An example should clarify: Try this: generate 3 // make 3 artificial records gen integer id = recnumber // create id variable define animal _________ // make a string variable * add value to the variable: if recnumber = 3 then animal = "monkey" if recnumber = 1 then animal = lower("LION") if recnumber = 2 then animal = "LION" . list ID ANIMAL 1 lion 2 LION 3 MONKEY * so we see that we have three values for the variable animal. * and we have two variables: . var Name Type Length Decimals ID Integer 12 0 ANIMAL String 9 0 %s9 * now we try various selects: select if animal = "LION" count No records available select // to select if upper(animal) = "LION" count No records available select select if upper(trim(animal)) = "LION" count Count : 2 The essense is therefore that to do a select on a string variable, you have to use as well sometimes the function upper() and the function trim() to get a proper selection. regards Jens Lauritsen Initiator of EpiData Coordinator EpiData Association

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How to select "string variables" in Epidata Analysis ?
by epidata-list＠lists.umanitoba.ca 01 May '05

01 May '05

Dear sir, Hello. I am one of Epidata Users around the world. I can not select "string variables" by Epidata Analysis. I am not sure whether the "Epidata Analysis" program can select string variables. For example: Name of my Variable : Outcome and my Options for the variable : cure , death , disabled, unknown I write(or do) the command: select outcome="death" But no selection is done and this is the massage : No records available But I am sure that records are available because I myself have entered them and also EpiInfo software do select them ! Thank you REZA __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

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Do not test estimation in stratified 2x2 tables (b22)
by epidata-list＠lists.umanitoba.ca 15 Apr '05

15 Apr '05

Persons testing build 22 of analysis should notice that the list of issues to resolve before v1.0 contains the line: "Table command - thorough testing of correctness of estimates and inverting tables." Finalisation of estimation procedures started this week and was not included in build 22. The major new part of the programme in build 22 for testing is: a. All file types should be read properly now. Including files with encrypted fields. b. User defined different table design definitions and other refinements to the output design principles. (further documented with installation). regards Jens Lauritsen Coordinator and initiator of EpiData Project http://www.epidata.dk

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