[Rd] RNG usability

Paul Gilbert pgilbert@bank-banque-canada.ca
Wed, 23 Feb 2000 15:49:50 -0500

>It does not
>necessarily save the state of other generators, and in particular
>does not save the state of the Box-Muller normal generator.

I thought Box-Muller just transformations uniform numbers? Does its
state just refer to whether an even or odd number of numbers have been
produced, and in the later case keep the last one for using the next

>If you want to reproduce work later, call `set.seed' rather than set

But then I'm back to the original problem (which fortunately does not
seem to be a problem for the uniform generator): Using B-M for rnorm I
can't query the state at any given time and then reliably reset to that


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