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st: Random seed revisited - how to get random seeds more efficiently?


From   "Tiago V. Pereira" <tiago.pereira@incor.usp.br>
To   statalist@hsphsun2.harvard.edu
Subject   st: Random seed revisited - how to get random seeds more efficiently?
Date   Tue, 30 Sep 2008 21:00:39 -0300 (BRT)

Dear all,

I have used the following random seed generator:

*/---------------START--------------------
tokenize "`c(current_date)'" ,parse(" ")
local seed_1 "`1'"
tokenize "`c(current_time)'" ,parse(":")
local seed_2 "`1'`3'`5'"
local seed_final "`seed_1'`seed_2'"
set seed `seed_final'
*/--------------END-----------------------

I suspect that for loops that take less than 1 second, I am using actually
the same seed for 2-5 loops (it is just a guess). Do you know more
effective (pseudo)random seed generators?

Thanks for your time!

Cheers!

Tiago





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