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Message Posted: Fri, 09 Jan 2004 @ 21:25:37 GMT


     
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Subj:   Sampling Method
 
From:   Hassinger, Bill

We currently have an auditor using TD to select row samples. I have some "opinions" on the way sampling works, but no authoritative information. Given that we are currently on V2R3 and have no RANDOM function, does TD:

1. Move all rows into spool before selecting the sample?

2. Use (a). some internal random sampling algorithm or (b). simply select each nth record given the whole population/sample size ratio to create the sample from the spool?

3. Can anyone identify the "published" technique TD uses for sample selection by name or formula?



     
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