[EpiData-list] appending and number files to be read dynamically

epidata-list at lists.umanitoba.ca epidata-list at lists.umanitoba.ca
Sun Sep 11 16:06:37 CDT 2005

Thank you and this is good to know.  a coupe of questions, please.
1. this suggest the limit to the number of files to be appeneded is realted to machine memory?
2. this is the solution to the "lack" of ability to dynamically read multiple files?
Would those of you who have used these techniques please let me know what size of the
files you have been working with and, any other options you have used.
Thank you very much, Kelly

	-----Original Message----- 
	From: epidata-list at lists.umanitoba.ca [mailto:epidata-list at lists.umanitoba.ca] 
	Sent: Fri 9/9/2005 8:14 PM 
	To: epidata-list at lists.umanitoba.ca 
	Subject: [EpiData-list] Appending

	Dear Eleni:
	There are two ways to append - one is within EpiData, the other highly
	efficient within EpiData Analysis.  If you append (not merge) files with
	the same same structure, try this in EpiData Analysis, ver 0.9 build 38:
	* ----Program begins next line
	* switch to the folder where your REC files are located
	cd c:\temp1
	erase "abcd.rec"
	read "a.rec"
	append "b.rec"
	append "c.rec"
	append "d.rec"
	savedata "abcd.rec"
	* Do some tabulation to check
	read "abcd.rec"
	tables sex res1
	* --- Program has ended previous line
	Best regards,
	Hans L Rieder, MD, MPH
	Jetzikofenstr. 12
	3038 Kirchlindach
	Tel: +41 31 829 4577
	Mob: +41 79 429 9945
	Web: http://www.tbrieder.org

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