[EpiData-list] Random selection of records

epidata-list at lists.umanitoba.ca epidata-list at lists.umanitoba.ca
Tue Mar 4 04:28:56 CST 2008

Dear Jamie,
                       Thank you so much for the solution for the query “INCOMPATIBLE KEY VARIABLES”. It worked well.

 Can you please help in two other situation also ?

1. There is a file say “try.rec”  Is it possible to read it and write another file with 5 randomly selected records or selecting every 4th record (as done in systematic sampling). The documentation of the commands such as SET RANDOM SEED and RANDOM SIMULATIONS is not clear in the help file. I am attaching a sample file try.zip.

2.What is the equivalent of SET LISTREC=ON/OFF (EPI6) in Epi Analysis ver 2.03 ?

With regards,

Dr. Shavinder Singh
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