Dejavu all over again?

Walden H Leverich III
Tech Software
(516) 627-3800 x11
(208) 692-3308 eFax

Quiquid latine dictum sit altum viditur.
(Whatever is said in Latin seems profound.)

-----Original Message-----
From: Joel Fritz []
Sent: Monday, September 16, 2002 19:07
To: MIDRANGE-L@midrange. com (E-mail)
Subject: ceerano and the seed

We've been playing with CEERANO to try to construct a list of 13 digit
unique numbers in "random" order.  It looks like that after 20,000 or so,
diminishing returns sets in in a big way.

What we're doing is starting with zero as the seed and using whatever gets
returned in the seed parm as the next seed.  The test program looks at its
output file to see if the current random number is in the file.  If not, it
writes it.  Out of curiosity I tried a run of 99,999--off by 1 <g>--just to
see what I'd get.  1322 of the numbers occurred 70 times, 29 of them
occurred 69 times, and the others occurred once.  I guess I'd expect the
frequencies to be a little more normally distributed.

Looks like using the seed value returned by the function is not a good idea.
Does anyone know what's happening here?
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