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st: RE: seed command with rndbin
Gwen Allardice writes:
> I have recently found a problem in stata v7 . I have been
> using the rndbin program extensively in some simulations I am running.
> I would like to be able to replicate my results and find
> that the seed command does not seem to work; I keep getting
> different results.
> e.g. a simple example should illustrate my problem. the
> following three lines of stata will generate and show me an
> appropriate random number but repeating the three commands
> then gives me a different number. I want it to give me the
> same number.
> set seed 2
> rndbin 1 0.33 6
> display xb
> Can someone show me how to run the rndin command more than
> once and get the same result each time.
This apparently has something to with the fact that -rndbin- is
a Stata version 3.1 program. If you change the version # within
-rndbin- to 5 then the -set seed #- is honored (and the program
seems to still work correctly).
Someone from StataCorp will need to explain why this behaves the
way it does under version 3.1; my memory is not good enough to
know how -set seed- and random numbers worked back then!
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