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From Ted Dunning <>
Subject Re: [Math] Issue 348
Date Sat, 06 Mar 2010 18:21:39 GMT
Making these immutable will be a real pain as demonstrated by the
over-dispersed exponential example.  In particular, to maintain performance,
it would require that all constructors be arranged to allow injection of a
random number generator.  Management of that would be a nasty code issue.
Better to just allow the parameters to be changed so that a user can ignore
the issue of which PRNG is used.

On Sat, Mar 6, 2010 at 7:32 AM, Phil Steitz <> wrote:

> This is a separate issue, as you point out.  I am +1 on deprecating
> the setters so these all become immutable in 3.0.

Ted Dunning, CTO

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