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From Thomas Neidhart <thomas.neidh...@gmail.com>
Subject Re: [math] random boolean arrays
Date Sat, 11 Jul 2015 19:29:55 GMT
On 07/11/2015 09:08 PM, Phil Steitz wrote:
> The code implemented in MATH-1242 to improve performance of KS
> monteCarloP in-lines efficient generation of random boolean arrays.
>   Unfortunately, I think the implementation is not quite random (see
> comments on the ticket).  To verify it, we need to be able to test
> the random boolean array generation directly.  To do that, we have
> to either expose the method (at least as protected) in the KS class
> or add it somewhere else.  I propose the latter but am not sure
> where to put it.  For speed, we need to avoid array copies, so the
> API will have to be something like randomize(boolean[], nTrue).  It
> could go in the swelling MathArrays class, or RandomDataGenerator. 
> The latter probably makes more sense, but the API does not fit too
> well.  Any ideas?

If it is just for testing purposes, you can also access the method in
question via reflection, see an example here:
http://stackoverflow.com/questions/34571/how-to-test-a-class-that-has-private-methods-fields-or-inner-classes

Thomas

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