Re: st: reproducibility of rndbin - set seed

[Richard Williams <Richard.A.Williams.5@nd.edu>]

At 10:32 PM 3/26/2004 +0000, David Schriger wrote:
> Dear StataListers,
>
> The following .do file produces different results for xb each time run.
>
> clear
> set seed 4530754024
> rndbin 10000 .363328 262
> summ xb, d
>
>
> Since the rndbin command invokes uniform() I thought that setting the seed 
> would make the program produce identical results.
> What am I missing? Did seed not exist in version 3.1
Type -help version- for details.  Basically, there are two random number 
generators in Stata, the "old" one (Stata 3.1 and earlier) and the "new" 
one.  I believe what is happening is that you are setting the seed for the 
new version but you need to set it for the old version.  So, change your 
set command to either

set seed0 4530754024

or else

version 3.1: set seed 4530754024

Both worked when I just tried it.  Also, I notice there are a couple of 
versions of rndbin floating around, so you might double-check to make sure 
you have the latest (I'm guessing it is package rnd from 
http://www.stata.com/users/jhilbe).




-------------------------------------------
Richard Williams, Notre Dame Dept of Sociology
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