[boost] [Random] - statistics_test for boost::uuids::detail::seed_rng

Subject: [boost] [Random] - statistics_test for boost::uuids::detail::seed_rng
From: Andy Tompkins (atompkins_at_[hidden])
Date: 2011-03-13 14:25:09

Hi,

I'm trying to determine how well the boost::uuids::detail::seed_rng
generates random numbers.

I changed (just on my machine) the statistics_test of the random library
so that it will also test seed_rng.  Sadly I don't really know how to
interpret the results that follow.  I included the mt19937 results as
well.  I assume the results are good.  Would someone confirm that and
maybe tell me how good/bad they are?

D:\Code\boost-trunk\libs\random\test>statistic_tests.exe 
Confidence level: 0.99; 1-alpha = 0.01; chi_square(19, 36.1909) = 0.99 
Running tests on seed_rng 
KS: 15.92 16.4 
equidistribution: 19.28 15.84  2D: 27.12 17.6 
runs: up: 18 33.04   down: 22.96 11.12 gaps: 23.6 15.68
poker: 15.6 24.32 
coupon collector: 17.2 11.76 
permutation: 27.92 21.12 
maximum-of-t: 24.4 8.48 
birthday spacing: 16.4 20.5333

Running tests on mt19937 
KS: 21.36 19.2 
equidistribution: 22.16 20.88  2D: 29.2 18 
runs: up: 16.72 19.04   down: 21.68 37.6* [0.00666986] gaps: 12.72 19.2 
poker: 18.48 14.8 
coupon collector: 18 11.76 
permutation: 17.04 22.8 
maximum-of-t: 14.96 22.08 
birthday spacing: 19.6 10.6667

Regards, 
Andy.